I have just bought (not yet delivered) a Tosh 50H71. Now I am thinking about changing which model I am getting. I have a few questions that would help me make up my mind. I am getting 4:3 as I do alot more TV watching than DVD's. I will get a progressive scan DVD player but that is another topic for another day. 1) Does anybody know the difference between a xxH71 and xxHX71? and think it is worth spending more money for the HX71? 2) I have seen some comments that the 480p->540p conversion before the vertical compression is an issue should I look into this? 3) All the xxH71 models have 540p my question is how many lines (or is it pixels) do the different sizes have in the other direction. (pixels per width of the screen) Is is the same for all of them? (if someone has the numbers I would also be interested in the xxH81's as well) Do other brands have different numbers? I have looked for this info and could not find it. 4) Someone have a good reason to buy a different brand? I am staying away from Sony (personal choice) which is why I ended up with Tosh.