Alistair FinchWhen John Nellis stepped under the Strictly Come Dancing spotlight on BBC One on 19 September 2026, the Northern Irish content creator completed a career journey that began in a very different workplace: an air traffic control tower. His story — from safety-critical, highly regulated employment to global social media fame and now Saturday-night prime-time television — raises a legal question that applies to far more workers than most realise. Can your employer actually stop you from appearing on television?
From Control Tower to Ballroom: The Context
Nellis, originally from Newcastle in County Down, launched his YouTube channel in 2019 while still employed as a qualified air traffic controller — one of the UK's most closely regulated professions, governed by the Civil Aviation Authority (CAA) and subject to strict rest and duty-time rules. He grew his audience to over 20 million followers across YouTube and TikTok before making the switch to full-time content creation.
Now a Strictly 2026 celebrity contestant, he has described feeling "still in disbelief" at being selected. His on-screen pursuits — football content with Lionel Messi, Erling Haaland, and Cristiano Ronaldo, a Sidemen charity match in May 2026, and now competitive ballroom dancing — represent the kind of high-visibility secondary work that many UK employers treat with significant caution.
His transition was completed before Strictly. But thousands of UK employees find themselves in the opposite situation: still employed, and keen to take on a television role, a second job, or a public-facing project. Understanding what the law actually says is crucial before signing a broadcasting contract or submitting a reality show application.
What UK Employment Law Really Says
The short answer is: it depends on your contract. And that contract almost certainly contains clauses your employer can enforce.
The Advisory, Conciliation and Arbitration Service (ACAS) confirms that secondary employment restrictions in contracts are generally lawful, provided they are reasonable in scope and necessary to protect a legitimate business interest. There is no automatic statutory right in the UK to take on secondary employment without your employer's consent.
Secondary employment clauses typically work in one of three ways. First, a notification-only clause, which requires you to inform your employer of any outside work — a relatively light-touch obligation. Second, a consent clause, which requires you to actively seek and receive permission before starting secondary work. Third, an exclusivity clause — most commonly found in senior roles or safety-critical jobs — which prohibits outside work of any kind during your employment, without exception.
For regulated professionals, the restrictions go further than the employment contract. Air traffic controllers, NHS clinical staff, financial services professionals, and anyone working in safety-critical roles must also comply with sector-specific regulations that govern working hours, rest periods, and conflicts of interest. An air traffic controller filming a weekly TV series could, in principle, breach CAA duty-time regulations, not just their employment contract.
Reality television adds a further legal wrinkle. Broadcasters and production companies typically require exclusivity during filming and promotional periods, meaning a contestant cannot work for competitors, give media interviews independently, or in some cases take on significant additional commitments. This can create a direct conflict with existing employment obligations — even where the day job itself has nothing to do with broadcasting.
The reputational dimension matters too. If your appearance on television creates a conflict of interest with your employer, or brings negative publicity to their business — through controversial behaviour, public association with competing brands, or perceived professional incompatibility — your employer may have legitimate grounds to discipline you, even if you are technically not in breach of any specific contract clause. A landmark case many employment lawyers still reference is the 2019 Employment Tribunal ruling involving a nurse disciplined for social media content posted outside working hours that her NHS trust deemed incompatible with its values.
It is also worth noting that, since April 2024, workers on zero-hours contracts have had strengthened protections under UK law. The Worker Protection Act 2024 limits the enforceability of exclusivity clauses for genuinely low-hours workers, meaning an employer cannot prevent a zero-hours worker from taking a television role simply by invoking a blanket ban. Standard employed workers do not benefit from the same protection.
The Concrete Case: When a Secondary Employment Clause Costs You the Show
Consider a practical scenario that employment lawyers encounter regularly. A registered physiotherapist works for a private clinic in Leeds on a 30-hour-a-week permanent contract. Her contract contains a standard consent clause: she must obtain written approval from her employer before taking any paid secondary employment.
In August 2026, she is approached to appear in a Channel 4 consumer advice programme, filming across six Saturdays between October and December. The fee is £3,500. She assumes that because filming only happens on days she is not rostered to work, no issue will arise.
Her employer refuses consent. The reason: the production company's social media guidelines require the physiotherapist to promote the programme on her personal accounts, mentioning the show's sponsor — a rival private health group. The clinic argues that this constitutes working for a competitor, in breach of a non-compete clause she had overlooked. She seeks legal advice. An employment solicitor reviews her contract and finds that the non-compete clause is broader than is typically enforceable — it covers "any activity that could reasonably be perceived as commercially advantageous to a competitor," language so wide that it might not withstand a tribunal challenge.
If she proceeds without consent and is dismissed, her legal position depends on whether the clause is enforceable. If the tribunal finds the clause disproportionate — which is more likely given the minor commercial impact of a physio appearing briefly on a health programme — she could bring a claim for wrongful or unfair dismissal. But litigation costs money, takes time, and creates stress. If she had sought legal advice before signing the broadcasting contract, she could have negotiated a carve-out or challenged the clause proactively — at zero cost to her contract and potentially with full employer cooperation.
The arithmetic is stark: a £3,500 filming fee, set against potential legal fees of £5,000–£15,000 if a tribunal claim becomes necessary. Prevention is considerably cheaper than remedy.
What to Do Before You Sign Anything
Anyone considering a television appearance, a paid social media partnership, or any high-profile secondary role while employed should take four steps before committing.
Read your current employment contract in full. Pay attention to secondary employment, exclusivity, non-compete, and confidentiality clauses. Do not assume that a role is permitted simply because it occurs outside your working hours.
Check sector-specific regulations. If you work in a regulated industry — healthcare, aviation, financial services, law, social work — your obligations extend beyond the employment contract. Your professional regulator may have guidance on secondary employment or media appearances.
Seek written consent before you commit. If your contract requires notification or consent, notify your employer in writing and keep a record. Do not assume verbal approval is sufficient. If your employer refuses consent and you believe that refusal is unreasonable, take legal advice before deciding how to proceed.
Review the broadcaster's or production company's own contractual requirements. Exclusivity clauses, social media obligations, and brand partnership restrictions in broadcast contracts can create obligations that conflict with your day job in ways that neither you nor your employer anticipates. An employment lawyer can review both documents together and identify conflicts before they become disputes.
John Nellis made his transition before Strictly, not during it — and that timing matters. His story is an inspiration. But for those still holding down the day job while eyeing the camera, the gap between ambition and employment law can be expensive to misread.
This article contains general legal information and does not constitute legal advice. Employment law varies according to individual contract terms, sector regulations, and specific circumstances. Consult a qualified employment solicitor for advice on your situation.
If you are navigating questions about secondary employment, broadcast appearances, or employment contract clauses, Expert Zoom's legal specialists can connect you with qualified employment lawyers in the UK who can review your specific situation.
