The Guy that says Never, is the same guy who watches the next guy in line do what he just said could not be done.

That being said:
Day 1 8hrs (Customer Supplied Equiptment)
Layout / Install Plasma Brackets
Cut holes for power, low voltage
Pull rgbrw along with ir up wall behind center plasma and drop behind each tv
run romex up wall, junction in attic, and drop at each tv.
Pull 3 sat lines, 1 hd ant line from on-q Box and 1 phone, drop down wall.
pull 5 coax to outside eve from on-q for sat and HD
Trim electrical, and low voltage.

Day 2, 8 hrs
Install Satellite dish and Hd antenna
trim all rgbrw, tone, and Set Plasma displays. install 3 hd boxes, 1 tivo, and 1 dvd
install 1 hd, 1 tivo, 1 dvd into prewire living room sony lcd tv.
install " " into mast bedroom closet located directly behind tv w/ zantec IR control and trim.

Day 3, 8 hrs
program mx-800 and educate customer


I know its possible, because I did it. Id be happy to send some pictures before you say "well you must not have done a nice job then"