as long as you're watching live (that is, you've not skipped back or paused at all), then LiveTV will keep going but won't be able to write the rolling buffer files. I assume if you were actually playing from the buffer, livetv will just end when you reach the end of the last buffer file.
server: NextPVR 5.0.7/Win10 2004/64-bit/AMD A6-7400k/hvr-2250 & hvr-1250/Winegard Flatwave antenna/Schedules Direct main client: NextPVR 5.0.7 Desktop Client; LG 50UH5500 WebOS 3.0 TV