I've watched more than my share of TV program hosts, but have not met one. I've tried to imagine being one and once was invited to host a 30 minute TV program as part of a university's community outreach effort.
The taks of a TV host reminds me of preparing every day for 60 minutes of performing in a musical recital and saying something like Longfellow's poem Paul Revere's Ride from memory in front of Mrs. Chaney's fifth grade class (each of the 35 plus of us in the class did so one at a time). Plus, interacting live with one or more guests who may drift off of the script or topic. And, having to listen to and figure out what to say when someone keeps talking to you through your ear piece. All of that and handling the politics of the job, preparing for the next week of programs, reading Tweets from listeners, etc.
It's a daunting task. Hosts expose themselves to criticisms and other risks that exceed even their own most severe evaluations, including public rejection and embarrassment.
I tip my cap to those who do it whether once or day after day for decades. You got sand, Hosts! I appreciate your effort and look forward to learning something from you. As Chris Matthews says, "Tell me something I don't know."