I don't get to watch much TV but there is the odd hour in the day where I think it would be nice to watch something with my kids that we could all enjoy together (DD is 9 and DS is 6)
The things we've found so far that we all like are:
- Great British Bake Off (not on atm)
- Would I Lie to You? (I think we've watched all the episodes ever made)
- Outnumbered (seen 'em all)
As none of these are on at the moment we are currently restricted to episodes of the new Danger Mouse which, while good, is not my ideal evening entertainment 
We don't have Sky or anything like that so we are restricted to what's on Freeview and catchup TV. I'm thinking of getting a streaming service (Amazon Prime? Netflix?) but I don't know which. As a starting point it would be nice to know what you like to watch together and then I can find out where it's available.