I'm glad we agree about 'Still Game'. It seems to have been largely ignored by the critics. I vaguely remember the tin of salmon but my favourite episode would have to be when they hijacked the bus.
I've not seen 'Shameless'. It's bound to be repeated countless times, so I might give it a go. However, I like my comedy to be largely just that, i.e. 'pure' comedy. I can live with the slightly poignant moments of, say, 'One Foot in the Grave' but I can't get along with the mixture of comedy and pathos that Carla Lane used in series like 'Bread'. (I don't want to suddenly stop laughing for a sad moment. The only exception to that would have to be the final, extremely poignant, scene in 'Black Adder Goes Forth'.