My doctor's office has a TV that plays ads for prescription medications, but it's on mute, and it seems to be more of a slideshow type thing. The place where I get my oil changed usually has a crappy local channel but it's always Family Feud, so that's pretty cool. I never have to wait more than five minutes at my dentist's office, so I never notice what's playing on their TV, but their rooms have TVs that usually have on a cooking channel or HGTV. I always read a magazine, but I'll sometimes take my phone out when I'm getting my oil changed because they have free Wi-Fi.
I wish places would have game consoles in waiting rooms. I remember when I was a kid, there was a dentist I went to a few times before switching to a different one, and he had an arcade game or two in his waiting room.
I agree with the sentiment but you have to understand they have little control over how long their patients keep them by asking further questions, etc. You wouldn't want your doc running out of the room or appearing impatient, so they have to balance their act. Of course not all docs are equal either.
Who knows, maybe patients are keeping them longer because they have to contact someone in the middle of the session. Or they have to wait for incoming information. Juggling more than 1 patient at a time can be tricky too.
The appointment time thing is not as easy as you want to believe, especially as the day moves on. It's not like they purposely want to extend their day.
I usually only have to wait for my doctor for maybe 10-15 minutes at the most, but once or twice I've had to wait about 30-45 minutes. It gets a little boring sitting in the exam room for so long, but I'd rather have a doctor that spends actual time with his patients than one who barely looks at you and just writes a prescription.