Found by micheloe, confirmed by ronilse & i-loop

When TV is timeshifting and you navigate through the timeshift buffer with the up/down arrows, a subsequent action causes the TV OSD to appear indefinitely. You'll have to go to My TV Home in order to make it disappear.

h4. Additional Information
How to reproduce:
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- start TV + timeshifting in fullscreen
- press the up or down arrow to move back in the timeshift buffer
- press the right arrow to move forward in the timeshift buffer
- notice the OSD never disappears

BTW, step 3 can also be the right arrow or bringing up the context menu with F9.