Prime just affects the speed after the item is shipped. A delay before the item is shipped is a delay that happens regardless of shipping speed; in other words, you would have seen that delay even if you weren't a Prime member and ordered 2 day shipping, or free super saver shipping, or one day shipping. It's not Prime's fault, it's the seller's fault. There's a difference, even if the seller is Amazon.
I have. Mounted just fine.
I bought this tv and loved it for a year and a half, but then had to have it repaired because it's circuit board went whackey. LG gave me the cold shoulder and I spent nearly $200 out of pocket for it. Last LG TV I will buy, sadly.
The TV includes two composite inputs (red/yellow/white connection); one input on the back of the TV and the second along the left side of the TV. A Wii can also be connected to the TV (or any HDTV) through a component cable for 480p output which provides better picture quality than the standard 480i resolution. If you want, the Wii component cable can be purchased through Amazon: HD Pro Component Cable for Wii