I nearly forgot, cancel any audience baiting 'problem solving' show, like the detestable Jeremy Kyle show, where the object seems to just be, bring people in front of an audience to be hated, then question them to make people hate them more.
I know the people who go on are pretty scummy already, and usually borderline braindead with it, but they generally don't offer solutions, just a reason to hate more people. (and of course, it only ever shows poor people, because no-one rich would ever do anything bad, right?)
Bring back 'Tough Gig' a sort of reality show with some actual entertainment value.
Essentially they'd grab a comedian, and send them away for the weekend with a group of people, like surfers, or new age hippies, or fashion designers, or in Dara O Briain's case, Live role players, and then at the end of the weekend, they'd have to do a short gig to entertain them, based on their likes.
It was cancelled after three episodes, idiotically, the main problem seemingly was the editing and production, trying to make it into a 'conflict' show, because we all know you can't do reality without people hating each other. The facts were, the comedians got on with people, and the groups were happy to be treated with respect and open mindedness by an outsider.
On top of all that, the end gigs were generally pretty good too
I think with comedy being SO much bigger now, and live stand up being a prime time event on TV, it may do a lot better on a second series.