We do not offer size or recommendations for complete systems. We don't deal with hardware on the front end. When you place requirements of "200mbps internet connection which will also serve up to 4 more pcs", you need a professional to assist you, like a salesperson!
I do love this requirement though:
"able to record up to 4 different channels at once and have a remote control to control it"
YOu are funnny! I can tell you already you need 4 TV tuners! NO CONSUMER MotherBoard will suffice! Good luck with that! YOu are looking at a $14,000 PC! NO kidding!
BTW, Netflix doesn't run on Linux, it requires SILVERLIGHT! You have a lot of homework!!!!!
Yes - I fully appreciate the not recommending hardware - its a slippery slope - I just needed a broad idea of what I need - like your 4 TV tuners. The "list" I wanted was something like a. optical drive, a video card, a tv tuner (perhaps redundant in this case) ...
In response to your 4 TV Tuners, if I was trying to record something that came over the airwaves (like FreeView) then I would expect 4 cards, but as my TV will be via the internet I was wondering if there is software out there that can do this - even at a (one off) cost.
Dont worry about upsetting me - I have a very tough skin that repels spines :o)
At the cost of $14000 for my rig, then I think I cant afford to get you another beer!