The Globe’s John Doyle apparently counts The National’s “At Issue Panel” with regulars such as journalists Andrew Coyne and Chantel Hebert, as among the “most irritating” people on TV.  “Blah-blah, yada-yada” is what Doyle seems to hear each Thursday night when Peter Mansbridge and the panel turns Ottawa politics inside and out, or, becomes, a “tragedy of geekiness”.  Doyle rates the panel as even more insufferable than the road ragers in the Grey Power commercials..but not quite as bad a Justin Bieber.