Attention Sony 57"or65"XBR2 widescreen RPTV owners: I am seriously considering purchasing one of these sets, as they have built-in HDTV tuners (aka built-in All-format ATSC reception decoder). I've been discussing connections with another owner who is not receiving HD signals, and we've come up with the following questions: Question #1: Is an HDTV satellite receiver necessary? The salesman at Circuit City stated that I'd have to purchase a more expensive satellite receiver with an external HDTV decoder. A Sony phone rep stated that was untrue and that the CC salesman was trying to sell me something I didn't need; the rep stated that the HD signal would be converted via the internal decoder, and that any basic satellite receiver would work. If you have satellite, which type of receiver are you using and how is the HD reception on it? Question #2: On the Sony's rear panel, what type of connection are you using to connect the Satellite receiver? Question #3: What devices plug into the HD Component Video Inputs? Progressive Scan DVD??? Question #4: Are you using upgraded (Monster) cables? If so, is there a noticible difference? Thanks, answers to these questions will help me budget for and select the appropriate devices.