Can anyone remember a tv show
it was comedy sketches, I think done by a group of Canadians.

The only one I can really remember was a in the form of a science lecture where they got suggestions from the audience for things they should prove using comedy.

They had to prove that Shakespeare was a penguin called Robert.
( Vipros. clever got me this far, then tricky got me in, Fri 3 Apr 2009, 8:39, 11 replies, latest was 16 years ago)

Was it
Kids in the Hall?
( The Light in Chains don't touch the Pope's boner, Fri 3 Apr 2009, 8:42, Reply)

I remember this but not the name of the show.
Sorry!
( girlinthehole, Fri 3 Apr 2009, 8:44, Reply)

I don't think it was Kids in the Hall
it was very similar though.
( Vipros. clever got me this far, then tricky got me in, Fri 3 Apr 2009, 8:50, Reply)

Wikipedia has a page of Canadian sketch comedy shows. Could it have been Four on the Floor?

( The Light in Chains don't touch the Pope's boner, Fri 3 Apr 2009, 9:00, Reply)

much more recent than that
I'd say around 1996
( Vipros. clever got me this far, then tricky got me in, Fri 3 Apr 2009, 9:04, Reply)

Mr Show with Bob and David?
Your example sounds absurd enough for them.
( The Light in Chains don't touch the Pope's boner, Fri 3 Apr 2009, 9:14, Reply)

the kids in the hall was more about...
"i'm crushing your head!"
( blaireau69 , the Cumbrian Travis Bickle., Fri 3 Apr 2009, 9:23, Reply)

I'm pinching your head!
I showed my daughter that a couple of weeks ago - she loved it!
( Noeli overtheshoulderboulderholderthingstraplatchboobs, Fri 3 Apr 2009, 9:33, Reply)

Kids in the hall!
I loved that!

Was just trying to explain to someone about the crushy head man and the day he met the squeezy head man and had The Showdown.

Couldn't remember the show! Cheers.
(MrOli is ugly, but in the morning you will be sober, Fri 3 Apr 2009, 10:38, Reply)

was it
Was it "You can't do that on television" I think Alanis Morrissette was in it as a kid.
( SeasonTicketless is too often the statue, and rarely the pigeon., Fri 3 Apr 2009, 14:19, Reply)

hmm, don't think so
I vaguely remember one other guy at school watching it, and he's the sort of weirdo who would remember if I hunted him down and asked him out of the blue.
( Vipros. clever got me this far, then tricky got me in, Fri 3 Apr 2009, 15:11, Reply)