So I dont use ptat. However, today i was recording 3 shows on nbc, cbs, and abc during the 10-11 pm time slot, i was also watching a movie on hbo. Isnt that using 4 tuners? When i pressed the red hot key, it showed that 2 of the 3 tuners were in use. Am i missing something? Thought that only save a tuner if you use ptat.