Xfinity remote support

I did not word my question well.  I have found that the xfinity remote does not provide control (on/off, volume) for all tvs and sound bars.  I want to know what tvs (specific models) and sound bars I can buy that will work through the xfinity remote.  

CC,  I really appreciate your patience and help.  

Let me tell you my problem.  I have a Sony tv and sound bar that worked very well with the pre voice controlled remote.  I now have the latest voice control, but it does not support my tv or my soundbar.  I am looking to replace the tv, but I want to be sure that what I buy will work with the xfinity remote.  Is there any way to know what model I should buy?

As others said way to many to list unless you research what you brand/model you are looking at but I have a new 4k Samsung and it works with the remote when paired and then if  you select TV input on top left. I also have have a Samsung soundbar that is controled through the TV settings once there on remote.  I only need to use it when I want to get to the actual TV settings or steam directly from the TV. Everthing works fine normally with the remote.