Classic FM was OK for a while, but these days I almost constantly listen to BBC radio in the car or at home because unlike TV I can do other things at the same time. When I'm listening to R4 at home (talk radio with news, science, current affairs and comedy) it's often interesting or funny enough to deserve full attention. I still prefer radio as a day's background noise over constant streaming thanks to the variety in programming through the day, and the periodic talk, and news. I turn off or switch for some of course. :)
TV I mostly gave up on, except some BBC, and films and a few series via Netflix etc. I hate UK commercial TV - way too many ads now, enough to ruin the programming and stop me wanting to watch.
Without BBC radio it would ruin my day. Most days. I'm not sure what I'd do without it. Listen to a lot more audio books maybe, as I don't want 100% music.
If you want to experience the BBC a lot of radio is available for ad free download, podcast, or streaming on site, and there's always the World Service. Not sure how TV access is from abroad. World Service is interesting because it gives a distinct perspective that's different to domestic UK broadcasts. I used to listen a lot when I was often up late.
Yes, I do complain about the BBC occasionally (e.g. I was genuinely shocked as to how partisan they were during the Scottish Independence Referendum) but overall I love their service and am quite happy to pay my license fee.
It may have made some sense back when it was the only broadcaster, but now that it's one of many, and there are proven alternatives for ad-free (e.g. the HBO subscription model), I can't see any justification for continuing to force people to pay for a channel they don't like and don't use.
When you say "channel" you're talking about 7 Tv Channels and numerous radio stations
But you were asking about TV, so that doesn't apply. Though between Netflix and HBO Go, we get all the TV we can watch without ads. It's jarring to turn on a TV in a hotel room these days. "I'm continually amazed that people pay for this."