Here’s this week’s sign we may have overextended ourselves when it comes to TV channels. With some cable packages featuring over 200 stations, there has to be something to fill all that air time – no matter how exhaustingly boring.I think they must have reached the breaking point in Norway where the public broadcasting network is planning to dedicate five hours of live coverage to knitting. Said the show’s producer, “It’s kind of ordinary TV, but very slow.”I admit my TV viewing isn’t always that exciting as I have the mind-numbing habit of watching reruns of “Murder, She Wrote,” “Matlock” and “The Dukes of Hazzard.”