You'll need to align both sources together (looks like it should be easily done with just cropping and scaling) and color correct one of them so colors on logo match. Then make .png layer with what you want covered from HDTV and use Overlay in AviSynth for that.
Here's screencap from Web-DL, which has more on the bottom, less on the up, and completely different color timing.
Simple overlay script would look like this (if I remember correctly)
Here's screencap from Web-DL, which has more on the bottom, less on the up, and completely different color timing.
Simple overlay script would look like this (if I remember correctly)
Code:
HDTV=AviSource("HDTV.avs").ConvertToRGB32
logo=ImageSource("Logo.png", pixel_type="Y8").ConvertToRGB32
BD=AviSource("BD.avs").ConvertToRGB32.Mask(logo)
Layer(HDTV,BD)