flat screen tv mount

I bought a wall mount for the 19in flat screen we bought for the bedroom.  It is one of the kind that tilts, swivels and extends.  It looks like a good mount.  My only concern is attaching it to the wall.  The directions for it say to only mount it to 2x4 studs.  I am concerned about the metal studs being able to support it.  Should I look for a mount designed for metal studding?  Does such a mount exist?  Or should I use the one I got with sheet metal screws? Also, do any of you that have this type of wall mount take the tv off the wall when traveling?  This mount has a bracket that screws to the wall and the mounting arm slips over that bracket and can be removed when necessary.  I wonder about the stability during towing.

Our 5er came from the factory with the type of wall mount you're talking about. We leave the TV attached during travel, (19 in.) with support in front so it can't swing out. So far it has worked for us.

 I don't have any flat screens in my 5er but I would  find it hard to believe that all the mount would be mounted to is a 2x2 aluminum studd, I sure wouldn't trust it, I suggest you call the factory and see what they use for mounting the TV....better to be safe than sorry.....

While the exterior wall studs are aluminum, I'm pretty sure that partition walls use wood studs, either 2x2 or 1x1 depending on location and probably NOT on 16 inch centers. The hollow wall anchors suggested are probably not rated to handle the weight of a TV, especially in a bouncing RV, and they won't work with a solid wood stud. They may work if you truly can get a sufficient number of them mounted into actual aluminum studs. You really need to contact the factory about exactly where you plan on mounting the bracket.

I talked to Randy M. at the factory yesterday and he was very helpful as usual!  I am just not sure about mounting this bracket to the wall.  Randy did give me some ideas but after thinking it over I may just fabricate a bracket in the shape of an upside down "T" or "L" and attached that to the existing tv shelf then attach the tv bracket/arm to that.  I just need to check to see if I have enough vertical clearance between the shelf and ceiling to slide the bracket on and off its mounting while it is attached to the tv. If I fabricate something I will post pictures when I am done.