Unfortunately, there is no way to revert back to the superior TiVo software on the V6, other than getting the entire box swapped, but unless you were massively miss-sold the 360 or swapped accidentally\against your will, then that is likely to prove almost impossible to get VM to agree to (I've only heard of one case of it actually happening). Eventually everyone will be moved to the 360, though still no idea of the official timescale.
The 360 remote can be set to control the volume and power on your TV, which should reduce the number of button clicks slightly and allow you to turn off the HDMI control, alternatively a decent universal remote might do the trick, but then you still need the 360 remote if you happen to want to use voice control.
General response here is that you should have looked into the 360 before deciding to switch, but obviously VM don't advertise the differences, so I always provide a list in these cases in case someone else reads this post before deciding to switch:
Some of the missing features are as follows; Wishlists (where you can set the box to record programs on certain subjects or featuring certain people), undelete, series link+, series link manager, suggestions, setting of series links for programs not in the current TV guide, ethernet control, keyboard support via USB, switching between tuners with constant buffering, skip-back on fast-forward, quickplay, default recording options, cancelling individual recordings from a series link, multi-channel series links, radio channels allowing recording of radio, separation of recordings between boxes, watching recordings when internet is not available and probably a few others I've forgotten.
