[tellyblues]

I'm pretty sure Robot Wars was a thing before it became a TV show, though I don't know what happened to that after the TV show ended.

Its a Knockout was revived for Channel 5.

Knightmare, well that was revived in 2013 for YouTube's Geek Week:
www.youtube.com 

Fort Boyard has had a few incarnations, most recently for CITV as Ultimate Challenge, though its still a thing in France I believe.

Scavengers flopped first time round and was relegated to daytime TV to burn it off. Apparently the set cost a fortune.

Not sure from this post and others if you are simply giving out info and/or implying that you don't think shows would work or shouldn't be rebooted because they've flopped or been rebooted before but like with Hole In The Wall the public generally don't remember why shows were axed. Only when it is The X Factor or Big Brother, shows so embedded in culture that their opinion on a reboot is apparent - mostly negative - but people will give shows a chance otherwise Jeopardy and Password which have been revived multiple times now would never have been considered.

It's A Knockout was 23 years ago. Most people don't even remember there was a Channel 5 version.

Ice Warriors was a massive flop, it's not going to be revived ever.

Only people overly familiar with TV and gameshows know about it. I'm not saying that it should be rebooted but it has a USP which countless shows don't, many of which are currently being axed because they are retreads of an idea already overmilked and better done elsewhere. It's laziness from commissioners.

That may seem two-faced because I've been suggesting old physical gameshows in response to Gladiators doing well but not all of them are with Saturday nights in mind but it's clear that daytime fare doesn't cut it and other once popular formats are on the wane.