Least objectionable program
The theory of the least objectionable program (LOP) is a mediological theory explaining television audience behavior. It was developed in the 1960s by then executive of audience measurement at NBC, Paul L. Klein, Section::::"Why You Watch What You Watch When You Watch". In an article "Why You Watch What You Watch When You Watch" (published in "TV Guide" in 1971), Klein explained that viewers consume the medium of television rather than television shows, treating the medium as the end of their consumption itself rather than using the set as a means to access specific programs they like  the way they might choose a book from a shelf to access the story within. Since the introduction of television, the same percentage of sets are in use on, say, a Thursday evening at a certain hour, year after year, regardless of what content is broadcast. This is because unlike the way people use books, museums, or the cinema as means of consuming desired content, audiences consume television, the medium, as the desired object. TV viewers turn the set on, deciding to "watch television", and then seek out something to watch from what is available, flipping around, not until they  find "something they like" - because television programming is in fact very rarely satisfying, and viewers rarely watch anything they actually like - but until they find something that doesn't offend them enough to make them flip to the next channel. (Viewers almost never turn off the set as a result of finding nothing tolerable and judging every program available boring or otherwise objectionable. Viewers commonly watch programs they describe later as unbearable, everything else on being even more intolerable. A more common response to a whole spectrum of equally unendurable choices than choosing to abandon the medium is to continue  to flip frequently until new choices become available.) Thus, for programmers of television channels, Klein recommended understanding that audience attraction was a matter not of pleasing the greatest number of viewers but of offending the fewest (driving the fewest away to the competitors who may repulse them less). The television audience is in a kind of partial trance. A network will do better worrying less about not giving an audience enough to like, to be surprised and delighted by, and to engage their attention, than about avoiding, as Klein said, "disturbing their reverie" with something that causes them to change  the channel. Thus, even as channel choices proliferate alongside numerous easily accessed out-of-schedule viewing options, successful television programs remain, as they have always been, formulaic, cliché, "instantly familiar," predictable, and monotonous in tone. Least offensive programming. Least offensive programming (sometimes abbreviated as LOP) was a strategy employed mainly by major US television networks, approximately from the 1940s to late 1970s, where viewer numbers were thought to be sustained by television programming that offended the fewest viewers. The result was an often mass-produced, bland output of popular culture focused on leisure, targeting the American middle class. The theory  was popularized by Klein. Obsolescence of the theory. It has been widely suggested that the theory itself is obsolete thanks to high quality shows, top-rated options and viewers' choice of shows whether live or time-shifted alongside the advancements of DVDs and Netflix.