When the other networks went to the Norelco, NBC was forced to use them also, to match the competition's picture quality. For the first time ever, NBC was using cameras not made by RCA. This was a major embarrassment, resulting in a crash program which led to the TK-44. This was a fine camera, slightly better than the Norelco. As soon as it was available, NBC dumped their Norelcos and used the TK-44 for many years. You can see the TK-44 in operation in the recent movie "Anchorman - the Story of Ron Burgundy" (highly recommended for TV fans and history buffs). Christina Applegate co-stars, and looks great!