Roamio Remote Battery Door!

This would be the 9'th tivo I have purchased and set up, and the first one that is defeating me.

How the hell do you open the battery compartment on the remote (default that comes with a Roamio Pro)?

The cover doesn't obviously slide one way or another. There's kinda a lip on one side you can press or pull, but I don't want to do either with too much force. And without knowing which way it goes, I don't know if I'm not pushing hard enough, or if there's a hidden latch, or.... I...

Roamio Remote Battery Door!

Roamio Remote Battery Door!