Most HD consumers are finding out that there is simply not enough HDMI connections on their brand new TV. Some of the latest ones offer 2 HDMI inputs and the first generation HDTV generally only had 1.
A plethora of HD sources has hit the market. For example, PS3, HD DVD, Blu-Ray, AppleTV, Settop boxes, video cards and recently even video cameras have HDMI to capture in HD for home videos.
Instead of re-connecting you HDMI sources to the HDTV, you can use a
HDMI switch to multiplex the HDMI sources to the HDTV.
Saves wear and tear and endless frustration.