The link below leads to a list of shows in the UK based in American ones. Many of the shows are the exact same format, but have a new name (like Family Feud --> Family Fortunes):

http://en.wikipedia.org/wiki/List_of_British_television_programmes_based_on_American_television_series

Hmmm.. We seem to have alot more success adapting your television to our screens than you do adapting our TV for your screens...

http://en.wikipedia.org/wiki/List_of_American_television_series_based_on_British_television_series

The American version of Red Dwarf is absolute ball-bag.