I just switched to a Tivo Premiere from DirecTV. I'm on version 20.2 and using the HD GUIs for now, and had some questions on parental controls.
First here is what I am used to from DirecTV: On the DirecTV DVRs when I start playback I would have to enter my parental control PIN and it would unlock ONLY that show. Alternatively, I could go to a quick menu and unlock everything on the DVR for 4 hours, or turn off control completely. Additionally, by turning off the DVR (like standby really, but easily accessible by the simple off button on the remote) it would automatically relock parental controls if I was in that 4 hour window.
From my time with the Tivo it looks like I can only unlock everything for 4 hours (no option per show) or turn off controls completely through the menus. And the only way to relock during the 4 hours is to goto the menu and turn it back on manually. Any shortcuts that I am missing? This makes me more nervous cause it relies on me to remember to relock. Seems like the DirecTV approach is more foolproof.