Where in the thread did the OP list his needs or even mention a BD player as a source? Supposing that was one of his desired sources, are you suggesting that if he wishes to move from room to room while watching a movie, he stop the disc, take it to the next room, skip to where he left off, then continue watching? That's bad enough--what if he was in the middle of watching streaming content?.
Zektor, Atlona, Intelix, SnapAV, and Leaf come to mind as far as 8x8 matrices. Look for HDBaseT models.