Not true. PBS was on UHF channel 17, for which you had to adjust the circular antenna. That's where we'd watch Mr. Rogers' Neighborhood, The Last of the Mohicans (a version truer to the James Fenimore Cooper book) presented by Alistair Cooke on Masterpiece Theater, and of course Monty Python's Flying Circus. All uninterrupted by tire commercials. (See how I tried to steer somewhat back onto topic there?)If you were old, you'd remember when there were no channel numbers above 13.