What Is A Tablo. Cancel cable, keep the dvr with tablo. Tablo is the product name, so we should probably start asking “what is a tablo” instead of “what is tablo,” but . Simply put, tablo is an ota dvr. Tablo then connects to your home's internet router, either through wifi or ethernet, so you can then browse, record and stream that free broadcast tv content . Instead of connecting directly to a tv, the tablo box can sit . The new tablo atsc 3.0 quad hdmi is a dvr meant for the next generation of broadcast tv — which, if all goes according to plan, will involve 4k hdr content .