Can you mount a 42 inch TV to a wall?

You can mount a 42", I have a mounted 52". The problem is that you need atleast 2-3 people to mount it, I would just hire a handyman and have him do it (that's what I did). And yes, there are swivel mounts that swivel your television. But I am not sure for 42" televisions, make sure you do your research for the firmest one.