Will this work with my Dish Network Reciever?

My Dish Network reciever in my bedroom(3900) only has one set of rca audio output jacks so thats giving me a lot of trouble because I want to send audio to my tv and to my vcr.
Video is not a problem because the 3900 has in essence parallel video outputs S-Video and Composite video.
S-Video sends video to my tv, and composite video sends video to my vcr.
So it's like having 2 sets of video outputs.
However, I'm having a problem with the audio since the reciever only has 1 set of rca audio output jacks.
Well, will this adapter from Radio Shack fix my problem?
I'm thinking if I get 2 of these adaptors and connect one adaptor the to each rca audio jack on my dish reciever, then it will be like my 3900 has 2 sets of rca audio output jacks.
Will this work or not?
Does this adaptor only work as a splitter, or does it only work as a combiner, or does it work as both a combiner and as a splitter?
I'm thinking that the most common use for such an adaptor would be to combine L/R stereo audio from red and white rca audio cables into just mono audio for connecting like a Gamecube to a tv with mono av inputs or something like that.
So anyway, will this fix my problem or not?

www.radioshack.com/produc...=274%2D881 (http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=&product%5Fid=274%2D881)

Yeah it will work.

I purchased a wire (approx 4" long) version which was probably much cheaper with 1 male tip and 2 female.

I don't exactly know what you mean by combiner. As splitters they are fine though.

I had a receiver with 1 set of RCA jack. The two splitters I added did allow for hookup to my TV "and" stero system at the time.

It should work fine. The only problem you may have is that the audio will be of a slightly lower volume but you probably won't notice.