Bought a new Bolt+ 1TB cable unit a few weeks ago to replace my failing 3tb Bolt+... After initial setup I downgraded to TE3 and restored all of my programs, setting etc. Everything has been working great for past few weeks... Today I turn on my Tivo and during the night it automatically reverted me back to TE4 !!! WTH?? With all the hassle required to revert to TE3 once again, I would hate to go through all the steps again only to have it go back to TE4. Is there any way to "lock" TE3 in? Very frustrating as I absolutely despise TE4.