Turn-On production. Many assumed the show's title was itself an implicit reference to Timothy Leary's pro-drug maxim, "Turn on, tune in, drop out". The network eventually replaced "Turn On" with a revival of "The King Family Show". The controversy led ABC to reject a pilot written by Norman Lear, stating that the lead character was "foul-mouthed, and bigoted", out of fear that it might anger its affiliates again. CBS liked it, picked it up as "All in the Family", and began airing it in 1971. In 2002, "Turn-On" was ranked number 27 on "TV Guide's" 50 Worst TV Shows of All
Drop-out compensator sample-and-hold technique for in-house use. Dedicated drop-out compensators were eventually superseded by the incorporation of drop-out compensation functionality into timebase correctors based on analog-to-digital conversion and digital line stores. The advent of compressed digital video systems finally eliminated the need for line-based drop-out compensators. Most low-level media errors, such as those caused by tape damage or imperfections, are now dealt with by forward error correction techniques, and those which overwhelm the FEC layer are typically too severe to remedy using simple line-based error concealment techniques, because damage to the compressed bitstream will often damage large parts of the video image.