TCM

Unlike AMC, Turner Classic Movies is essentially commercial-free (advertising only TCM products, promos for specific films scheduled to air on the channel in primetime typically using the film's original movie trailer as well as promos for special programming and featurettes about classic film actors and actresses, and only airing these advertisements in between features so as not to interrupt the film). TCM's content has also remained mostly uncut and uncolorized (depending upon the original content of movies, particularly movies rated by the MPAA after 1968). Because of the uncut and commercial-free nature of the channel, TCM is formatted similarly to a premium channel; as such, viewers might find that certain films made from the 1960s onward, may feature nudity, sexual content, violence and profanity (though most films airing on TCM are devoid of such content as it mostly airs pre-1960 films, when content standards for films were more restrictive); the channel also features premium channel-style ratings bumpers seconds before a film starts (though films on TCM are rated using the TV Parental Guidelines as most movies aired were made before the MPAA ratings system was established) instead of displaying a rating icon at the very start of a movie.

Source: Wikipedia.org