To stop the MTN error, just disable auto create thumbs for videos in the Thumbs section of the MP config.
I don't use the icon views for RecordedTV (I think they are ugly - don't know how to make 'em pretty) and was getting the MTN error every time I entered Recorded TV, disabling the video thumbs creation stopped the error.
Chuck
Yes I don't use icon views either, I have disabled it in MP config and will see how that works.