As I was reading through some of the other user comments - it brought back some memories of phrases I hadn't thought about in years.
It seems he was a staple of many Canadian kids on Saturday mornings during the 70's (especially if you didn't have cable!). I do remember Bimbo the clown and those cone puppets, but the thing that always comes to mind when I think of Uncle Bobby is that magician that would come on and perform some trick - Uncle Bobby would help him out, and more often than not the trick would sort of come together and they would both kind of singsong the phrase "iiiit's maaagic"! I thought I was the only one who remembered this show - and the fact that I do believe he would get more and more soused as the show went on! But hey - that was the 70's for ya...