Yes, as I understand it you cannot make any video adjustments to any input (such as TV, DVR, DVD, etc) that has an hdmi input assigned to it with a Pioneer receiver. That would mean no video up-conversion from 480P to 1080P. In fact, with an hdmi input you cannot even access the Video Parameters menu. With Pioneer you don't go into the Main menu to make audio or video adjustments. They have a button on the remote labeled "Audio Parameters" and another labeled "Video Parameters". Only inputs with composite or component connections have access to the Video Parameters not those with hdmi connection.
If you select an input that does not have hdmi assigned to it or has composite/component (or nothing assigned to it) you can access the Video Parameters menu to turn Video Conversion On or Off. When I set my Dish Network receiver to output 480P (for both standard and HD stations) and turn the receivers Video Conversion on my display still shows 480P as the in-coming signal. Even with Video Conversion turned on it will not convert an SD hdmi signal to 1080P or apply any other video adjustments like Color, Contrast, etc.
In reality, this is not an issue for me since my Dish receiver apparently converts SD stations to 1080i (though not very well

) and both my dvd player and Bluray player will convert to 1080P not to mention that virtually all displays released over the last few years can only display one resolution, either 720P/1080i or 1080P depending on whether the display is 720P or 1080P. I'm sure this is why Pioneer has choosen to do this (although no other brand that I know of has.
I bet your Sony Bravia will convert an SD signal just as well as any receiver on the market. If you had a Westinghouse or Element display then maybe I'd be a bit concerned.
I have no idea how Anthem handles video conversion.
In any event, buy a receiver for it's audio performance, not it's video.
