Maybe this receiver will work for you (MSRP $299):
Sherwood RX-5502 Multi-Source/Dual-Zone 400 Watt Stereo Receiver
Based on skimming through its downloadable manual, it looks like it can play one source & power a pair of speakers in one room, and it can play a 2nd source via another pair of speakers at the same time. It also includes a phono input.
I read your first post where it said you were just using the TV's speakers, but I gotta tell you, ANY external pair of speakers would sound sooooo much better than those and IMO can really add to the enjoyment of a movie. And if that TV's speakers are like many flatscreens' speakers I have listened to, using even a pair of small budget speakers will result in much-improved dialog clarity. For example:
Sony SS-B1000 - I've listened to these not-unattractive little bookshelfs with a 5.25" woofer using my own CDs (I also made sure the demo system's receiver was set to "flat" and no surround options were activated) and while they aren't audiophile quality of course, found them to sound pretty decent (I am surprised they are so inexpensive actually) and especially, not tinny or harsh like
truly cheap speakers can be. I actually liked them better than the nearby Polks which I personally found to be overly bright and strident.
MTX Monitor 5i - another black/unassuming small bookshelf with a 5.25" woofer. Personally I've found most MTX speakers I have listened to to not be exactly super-refined, but they make up for that with a lively/punchy (but not harsh) personality which can sound good with bass-heavy rock & pop music and movie soundtracks.
Infinity Cascade Model Three V - made especially for flatscreens....though they cost just a tad more than the above speakers.

They only reach to about 80Hz but what they *do* have should sound excellent, plus they look
awesome, something you usually only see in an architectural magazine.