Is external drive required

[3rdRockOKC]

Maybe this thread will help.

Is External Hard Drive Necessary for Live TV?

Having a lot of buffering issues with Tablo since late June (2.2.16 update I am guessing). But I don’t record anything or need to. Just want live TV to play. Is an external hard drive necessary for this? Or should the Tablo box alone be sufficient for live TV?