[oh8eleven]

These large screen HDTVs generally weigh over 300lbs ...
I have no idea what you're talking about.
I've looked at well over 20 models - up to 70" screen, plasma, LED, LCD - and most weigh around 90 pounds or less.
Even the 80" screens I've found are more like 120 pounds - nowhere near the 300 you stated.

Example:
Product Weight 121.3 lbs. with stand (113.5 lbs. without)
TV Type LED Flat-Panel
Screen Size Class 80"

[Cvengr]

Panasonic TH-85PF12U from specs apporox. 260.2 lbs
Samsung SyncMaster 820TSn-2 1915.0 x 1230.0 x 500.0 mm / 75.4 x 48.4 x 19.7 inches (WithStand) / 140 kg / 308.6 lbs

If you don’t trust the specs, go try to lift one.

I agree, the smaller 42-55” units are featherweight.

So now you can really enjoy that red 4 being placed on the black 5! ;^)