Fahrenheit 451, by Ray Bradbury - How plausible is the future envisioned in this novel?

Fahrenheit 451
Ray Bradbury
How plausible is the future envisioned in this novel?
The large screen televisions are believable - in fact, technology is currently leaning towards 48, 56" TVs that nearly fill up the whole wall. When this book was written, it seemed like an obscure possibility that TVs would ever be that big.
The Seashell earphones are like CD players. People can be listening to them in one ear and having a somewhat normal interaction with the half of their brain that's not listening to the music. In the futuristic setting, people are constantly being bombarded with what seem…