frankly they are massively more than you need. OK much better than under rated. But they really would be kind of hard to use.
When I needed to update the hooks on my 16 foot
scamp I just looked around and quickly found these at menards. Lowes and Home Dept sell the same general thing. Here we have the chains and the right and easy to use hooks. And this is still over rated for a
Scamp. And for $12 buck I get a brand new chain and the right easy to use hooks.
Now the ones you are looking at may or may not work with your TV. But they will not work with some and what happens if you need to have a buddy move your
scamp for you. These would work with virtually all TVs.
As for what I would then do with a different hitch setup on a TV that needed different length chains? I would just spend another $12 ;-)