Just received my 20WL56 and the picture is absolutely brilliant.
(It doesn't have the digital receiver of the WLT model, but the rest of the set should be identical.
I have no qualms recommending it to anyone. Power input is a 4-pin 24v plug, fed from a fairly large power-supply "brick" that takes 110-240v input.
Inputs are all bottom facing, about 2" above the bottom edge of the unit.
They are, from left to right, looking at the back of the unit:
Power in; pc input; AV3 (S-VHS, RCA audio, Y Pb Pr component input); AV2 (Scart); AV1 (Scart); Antenna; PC audio in jack.
Theer's a standard VESA wall mount on the back and the table stand is easy to remove.
Luminance on the picture is incredible. Only slight niggle is that the gloss finish to the scren reflects window light more than the matt screen on my Relisys RLT1730 it replaces...