They turned the pages, which were yellow and crinkly, and it was awfully funny to read words that stood still instead of moving the way they were supposed to -- on a screen, you know. And then, when they turned back to the page before, it had the same words on it that it had when they read it the first time.
`Gee,' said Tommy, `what a waste. When you're through with the book, you just throw it away, I guess. Our television screen must have had a million books on it and it's good for plenty more. I wouldn't throw it away.'
Same with mine,' said Margie. She was eleven and hadn't seen as many telebooks as Tommy had. He was thirteen.
I wouldn't throw it away = I wouldn't throw the television screen away
Am I right?
Possibly, TV, not TV screen. Additional context would help. That is, are they looking at just a screen or is that screen inside a TV unit?
All the best.