@Olivier5,
" wonder if what Lustig points at is not simply an illusion. If he was to watch now the shows he used to enjoy as a kid, he may well realize that his standards have gone up...."
I'm pretty sure that he is using the present tense, and referring to present day programming.
America does produce some excellent series, as mentioned, but if a sample of the fillers we get on some of our less popular moron style channels are concerned, I would say that yes, on the whole, British everyday TV is superior to American.
We have the beeb channels for a start, which don't really go for all out dumbing down and there is nearly always one of their excellent docu's or thriller/detective programmes on one of their channels at any given time of day or night.
ITV and Channel 4 lean slightly more towards the crap end of the scale, but once again, they are both very good at churning out some great, intelligent entertainment during peak hours.
Even my French sis in Law (and her family) regularly ask me to record and send DVD's of various thrillers they've heard about.
Brit TV has been swamped with the umpteen channels of cable/sattelite crap that has infested the whole English speaking world, but with BBC1, 2, 3 and 4, ITV and Channel 4 in amongst them, there's still some intelligent viewing to be had most of the time.