Point at the upper-right corner of the screen and click Search.
DVR / Live TV functionality is experimental in XBMC (https://soyoungsodesign.com/content/uploads/files/download/how-to-activate-live-tv-on-xbmc.zip). It was originally planned for Eden (version 11), but got pushed back to Frodo (verson 12). It’s under active development, and arguably useable, so I decided to go for it. After 3 days and a ton of reading, I have it more or less working. If that’s not a ringing endorsement, what is?