Reminds me of the time I've pulled my hair out with PD8 by one of the few beginners to use BR disc and editing hours of HD Disney videos. Anyway, using a BR burner, I have tried burning an AVCHD HD project on a regular DVD disc and also a 25 Gig BR Disc. I then played it on my PS3 along with a 1080I TV. They both look awesome !!!!
I think both discs are the same but BR holds more data. It comes down to all the factors of capturing, editing, and the bit rate of the burn. You can get the same results with a BR disc versus an AVCHD DVD disc.
The problem that HDEDIT has is that his BR player may not be able to read AVCHD format. As for a BR burner, the prices has dropped to a more reasonable investment. You can also use it as a regular DVD burner too.
As for the TV, 1080P is the way for viewing BR. However, if your disc is not a true 1080p and everything prior to that, it will look the same. Another big factor is the new " refresh " rate on some of these new sets. They need to be high to keep up with the signals.