The whole point of the answer that i posted was about having the 3 4 inch plywood large enough to be 1 larger than the tv bracket and 2 extend across at least two if not three studs 3 the plywood securely screwed into those studs with multiple strong screws at each stud and finally 4 mount the tv bracket to said plywood noting that with proper screws the plywood will be very good at.
Wall mount for 21 inch studds.
For the 32 55 inch version you can mount a tv with wall studs that are up to 16 inches apart while the larger model fits studs that are up to 24 inches apart.
Mounting dream tv wall mounts tv bracket for 42 70 inch tvs premium tv mount full motion tv wall mount with articulating arms max vesa 600x400mm and 100 lbs fits 16 18 24 studs md2296 24k 4 8 out of 5 stars 2 065.
The smaller version s full motion features will let you extend your tv up to 15 inches from the wall while the larger version can extend up to 18 5 inches.
Unlike wood studs where you can simply drive lag bolts or screws straight into the 2 4 studs metal studs are hallow and have thin walls.
I was thinking of using a 1x6 pine board cut to about 25 in length and mount the tv mounting bracket to the board.
When you have metal studs mounting a tv or hanging a heavy picture on the wall becomes slightly more challenging.
I have already purchase a tv mount designed for mounting a tv to a wall with 16 center stud placement however it turns out the studs are actually 24 apart.