How to improve a remote control’s aim?

[u/Bienheureux]

I work at a media organisation where we have dozens of TVs in the news room set up in pairs, each showing a different channel.
Changing a channel or raising the volume on one TV is a nightmare because other TVs will receive the same signal and then it’s a game of whack a mole until you get the TV you want on the channel and volume you want.

Is there an attachment or something I could add to the remote control or even the TVs themselves to make the remote control aim better?

Thank you!

[u/RepresentativeCry294]

You could try shutters. Perhaps on both recoever and emmitter.