#1 this is old and screenshots don't say shit, it's a garbage argument
#2 the actual differences when looked at on an average 40+ inch 1080p tv are hardly noticeable when using the same components, and really only noticeable if you're anal and looking up close, not just watching a program or sports game like a normal person would from a reasonable distance.
#3 as far as Comcast internet goes, your opinion of that will be changing on the 21st and that's all I can say about that right now
Comcast customer service still sucks but the quality of the actual service is pretty much unmatched for value and it's only getting better in the months to come (if they don't fuck this up)