Its Saunders.
and I believe the closest you will get to 1080p will be with a top notch capdevice. there something for your computer probably internal.
the hauppage is only 1080interlaced. 720p looks better imo and it even tells you to record in 1080i from game console output. larger files I dont want to work with.
skatereel 3 or 2 clips that you do stretch to 1080p might seem better but your still not getting the appropriate amount of pixels in each square. ie stretched.
Math heads could do some work and create a new profile to make a proper ratio, to increase the pixels length and width. Maximizing the clips quality.