I've got a question, I've been trying out stuff on Sony Vegas, and I did the PAL 720 x 576 (4:3), I've noticed the picture gets squashed when rendering, why is that, does that get streched out again when Transmitted?
Its because of Pixel Size. On the PC, the pixels are square, so 768X576 with square pixels is 4:3, but TV Pixels are rectangular, so if you set the Pixels to PAL, then you do 720X576.
Check your output settings, if you cant change the pixel size, do it at 768x576.