The crossover will be between the preamp and the amp. Any thumps in the amp will pass un-attenuated directly to the tweeter. I've always protected tweeters in tri-amp configurations.
No plan on using the speaker with regular CRT TV types. For the larger screens, I think RP, plasma, or maybe the new projectors as they mature offer the best large format image. Regular CRT's just can't get beyond about 40" screens.