I just found out that you can disable this and go back to the old version.
Go to Settings - System - TV - Last Watched Rail - Disable
Hate hate hate the new last channel button. The point is to quickly go back to the last channel, like when you're watching 2 football games. Now I click it, wait a few seconds, then a list comes up of previous channels I was watching. I already know what i was watching, that's why I want to go back. Extra clicks every time. What a pain.
Did you read the solution right above your post?
Every since I got Verizon FiOS when I pressed the last button on the remote it would simply change the channel to the previous channel I was watching.
Today when I tried to press it a menu popped up with recent channels I've watched and I had to select the channel I wanted to switch to. This adds unnecessary steps of pressing multiple buttons to go to the last channel.
How do I make it so the last button simply switches to the previous channel and not bring up a recent channels menu?