Best DIY tweak?

If you want

sharper..cleaner...brighter........darker colors!

don't most TVs have adjustments for these qualities? Although I rarely watch TV anymore, if I recall mine does.

DIY solid core powercables, 12-13awg. Mine is shielded too. Cleanest and most powerful current you can get. If you nedd any extension-cable make it solid too. Big powergain!

Replace the in-box powercable from rear wall to off/on-switch and back to trafo with solid too and your boxes will climb several classes in performance.

I simply tell the wife to go shopping for a few hours.

Hands down Jorgeparrapuppy...no contest. That IS the best tweak of all!

Jorge:

I agree with you on your tweak effectiveness (i.e. less things powered at home, no interruptions, lower background noise etc. etc) BUT unfortunately Rdylan meant inexpensive and that's where the thing goes sour......