6.2a has folders and mrv, but that train has reached the end of the line. One of the updates in 6.4a is to allow for a change in the guide data. That change happened recently, and as a result, units that have not been updated to 6.4a have begun to loose channels, mostly locals. When my affected units would boot up, acquiring satellite info screen took approximately 2-3x longer than normal (perceived time, did not clock it with a watch). It ended with an error that (paraphrasing here) that data could not be found for all channels. Upon return to live tv, most local channels no longer appeared in the guide, and were not tuneable.
The date of onset of this condition has varied from one market to the next, but there have been no reports of a 6.2a unit regaining its lost channels. It is likely 6.4a will be the only fix for this problem.
While you say you are not having problems with local channel reception, what was the timing of the onset of your problem, relative to the time other 6.2a tivos in your local market began loosing channels? It is possible the same problem (changes in guide data format) is exhibiting itself in a different manner with your software version.
Just an idea...
They say beer will make me dumb. It are go good with pizza!-----------
3XR10, prommed, 3xdvr40,4xdvr39, all networked, ranging from 40GB to 750GB