Rovi gets most of the same channel line-ups that Zap2It does. The amount of data you receive shouldn’t change either.
The goal is to continue to provide about two weeks of guide data.
For some people, you won’t need to take any action at all, but for others you will.
In some cases you may be required to walk through the TV Setup experience again.
In most markets you really shouldn’t see much of a change.
Since July 2015, WMC users have witnessed an almost comical display of inaccurate guide information, mismatched artwork, TBA sporting events, large blocks of generic “Programming” information, wrong New/Repeat flags, and even disappearing or missing channels, all while Microsoft and the new guide provider, Rovi, point fingers at each other.
All these problems make for a very bad TV, and an even worse DVR experience.
There’s a possibility that some series and single recordings may not record as scheduled.
If this occurs, you may need to stop or cancel current scheduled recordings, then re-establish the recordings as you originally intended.