BBUK highlight episodes are on every night unlike BBUSA/BBCAN. Check this link for times (GMT time obviously):
http://www.channel5.com/tv-guide/
We don't have live feeds as such, but some nights (maybe after evictions) there will be like an hour of live feed after the highlight show itself airs. Evictions are usually on Fridays but sometimes they have a ~surprise one midweek or something, but Emma always announces it. There's a new discussion thread every night made for that episode.
The exile stuff is basically going to be the housemates up for eviction (as far as we know) that Tom chooses based on what the public want.
Hope that answers the basics
