Here is a handy gadget for those that may have same problem that I ran into.
I purchased a HDTV about 1-2 years ago. It was a nice plasma and it works great.
However, it only has 1 HDMI input so I was unable to connect multiple HDMI sources ( my HD cable box, PS3 Blu-Ray) to the Plasam. I could have used the component inputs, but since HDTV is inherently DIGITAL, I wanted to connect using HDMI because that keeps the video and audio in the DIGITAL domain rather than converting from digital to analog at the source then analog to digital at the TV.
A
http://www.octavainc.com/HDMI%20switch%204port_toslink.htm allows me to connect up to 4 HDMI sources, so now I have 2 extra HDMI ports for upgrades. Perhaps, a Media Center PC. I also now can integrate this HDMI switch with switcheable TOSLINK output with my Yamaha receiver so the surround sound and HDMI both switch at the same time. If I want surrond, I simply turn on my Audio Receiver. If I am watching news, then I just listen to the audio provided by the HDMI to my TV.
The hook up is straighforward:
http://www.octavainc.com/image/HDMI_Toslink/HDMI_switch-4Port+AUDIO_app.jpg