Anyone Experienced In Dealing With Multiplexers?

I'm interested in getting a few of these for a good high end tv, instead of compromising with the built in limited pip/pop/pnp...

I might eventually try if I can find em a HDMI, Component and Composite Multiplexer box each.

But I was just wondering if anyone knew of any or had suggestions for good ones.

Being the videophile for home media I am, it's very important to me to have the very best of this function. LoL