What is Telehost?
1.
a television personality who seemingly performs the duties of a
"Let's get the obvious out of the way on this one: Diane Sawyer is a low-grade telehost who has the intelligence of a doormat... -- excerpt from The Saccharinist entry "Round 2: Ahmadinejad vs. Sawyer"
Examples include Diane Sawyer, Christiane Amanpour, Bill O'Reilly, and well, most of the idiots on American news channels.
See