This is a bit of football history, quite apart from this very early television appearance by the future Derby County manager. Because Brian Clough, Nigel's father, managed Brighton after he left Derby and before he joined Leeds United.
As Wikipedia puts it:
Such was the loyalty to Clough that along with himself and Taylor, scouts and backroom staff completed the walk out, following the pair for their brief spell with Brighton and Hove Albion. He proved less successful on the South Coast than with his previous club, winning only 12 of his 32 games in charge of the Division Three side.
Whereas eight months earlier Clough was managing a team playing Juventus in the European Cup, he was now managing a club who, just after his appointment as manager, lost to Walton & Hersham 4–0 at home in an FA Cup replay. On 1 December 1973, his side lost 8–2 at home to Bristol Rovers. Albion eventually finished in 19th place that season.A few years later he made Nottingham Forest the champions of Europe.
You can also find Brian Moore's interview with Brian Clough after Brighton's 8-2 defeat on YouTube. It is a reminder of how charming Ol' Big Head could be when he wanted.