I want to free up some floor space, and would like to put the tv on the wall its a 42" plasma but Im worried it may be to heavy, has anyone done this, and has it been ok.
Depends what type of wall it is. Masonry (stone / block work) no problem. Studded wall (plasterboard on timber or metal battens) could be a problem. You would need to screw the bracket into the upright timbers OR fit a sheet (patress) of MDF or plywood which screws into the uprights.
We've had a wall mounted 42" L.E.D for several years now and had no problems sorry I cant give you any details as to the fixtures and fittings as it was all part of the deal. Two guys came out and did the job in a couple of hours.
You will need a bracket that fits the designated tv fixing points and the bolts that came with the tv fruitsalad. If you can post the model no we can recommend. The link may help.
We have a 42" TV and it's now considered fairly average in a not too large room. Certainly not a mansion. A thank you from the OP would have been nice but hey ho.