dvdmike said:
Plus the WOWOW is not OAR
1920x1040 = 1.85.
http://screenshotcomparison.com/comparison/23689
Interesting that the edges are clean on the Canal+ and not on the WOWOW. I would say Marty's face holds up better on the Canal+ in the frame you chose.
(BTW, what did you use to make the PNGs? My MSPaint recompression of your Canal+ image is half the size.)