I think the programme you are referring to there Biggie is Superstars. I don't recall Jacks tumbling off his racer but i do know kevin keegan soaked up an arm full of tarmac on the show.
lol! You just refreshed an almost forgotten memory there - until you mentioned him I'd almost completely forgotten about Brian Jacks and yeah... we all hated him, and like you and your Dad, we had a bloody good laugh when he bungled on that bike!
I'm not sure whether I want to thank or throttle you for reminding me of Mr Jacks! ;)
Amazing that this tripe is still running. I saw it when it first started. Once you've seen a guy pulling a dustbin lorry along with his teeth, you've seen it a 1000 times. Yep, there was Geoff Capes, and that Icelander/Faroese/Lundy Islander Jon Pal Sigmarsson - big guy - big ego. But the one with the gigantic, Space Bat Angel Dragon-sized ego that overshadowed the entire Universe was Brian Jacks. What a git.
I remember there was one challenge with a bicyle sprint at the end. Jacks was so sure of himself, that he, ahead of the others, grinning a Cheshire Cat-like self-centered grin, decided to flex his muscles for the crowd just before the finish line, in some glorious display of his God-like genius, no doubt.
As he tightened his bi's and his tri's, cycling none-handed - he suddenly went ass over tit over the handlebars - and the other contestants rode past! I don't think he ever got across the finish line. Me, me brother and me Dad laughed our nads off!
Ah... used to enjoy this as a kid when Geoff Capes was around. I tried to watch an episode of this last year but the presentation just did my head in so gave up on it. Jon Pall Sigmasson... yeah he was another one I remember - how he used to grab his trophy then thrust it East, North and West grunting loudly each time!