Here in Canada, we are forced to watch a copy of the BBC program for live broadcasts, but will also get the replays on SPEED.
My personal opinion is that Brundle and coulthard are dry, boring and VERY monotone. I know the SPEED broadcast can be a bit cheesy, I actually find that I learn more by watching SPEED.
IMO, the US team gives plenty of feedback on actual facts...who is signing what contract, what $$ value, where the teams are for development, etc. I don't get the same depth of information from the BBC.
Oh, wait, I do get a long and constantly updated list of drivers from driver, from driver, etc... This is rather boring and is one of the reasons I refuse to watch BBC.