Movies also licenses films from Universal Pictures, Paramount Pictures, The Walt Disney Company (including film content from 20th Century Studios, Buena Vista Distribution as well as most of the Selznick International Pictures library), Sony Pictures Entertainment (primarily film content from Columbia Pictures and TriStar Pictures), StudioCanal, and Janus Films. Also, Turner Classic Movies has aired movies from the 1900s, the 1910s and the 1920s even if they are now entered in the public domain. Although most movies shown on Turner Classic Movies are releases from the 1930s, the 1940s, the 1950s and the 1960s, some are more contemporary – Turner Classic Movies sometimes airs films from the 1970s and the 1980s, and occasionally broadcasts movies released during the 1990s, the 2000s, the 2010s and the 2020s. Hosted and special programming Regular features Most feature movies shown during the prime time and early overnight hours (8:00 p.m. to 2:30 a.m. Eastern Time) were presented by film historian Robert Osborne (who had been with the network since its 1994 launch until 2016, except for a five-month medical leave from July to December 2011, when guest hosts presented each night's films), Ben Mankiewicz presenting primetime films on Wednesday through Sunday evenings, Jacqueline Stewart presenting "Silent Sunday Nights" on Sundays, Tiffany Vasquez presented the films on Saturday afternoons from 2016 to 2018 when Dave Karger began presenting Saturday afternoons and the primetime films on Mondays, and Alicia Malone presenting the films on Sunday afternoons, the primetime films on Tuesdays and "TCM Imports" on Sundays. During the 31 Days of Oscar film festival in 2021, which aired from April 1 to May 1 to coincide with the 93rd Academy Awards – which were pushed back to April 25 due to the COVID-19 pandemic – Stewart and Muller alternated hosting duties on Wednesday nights, as the respective programming blocks they hosted in any other month, Silent Sunday Nights and Noir Alley, were pre-empted by the month-long Oscar showcase. A similar occurrence took place in August for the Summer Under the Stars festival. Turner Classic Movies regularly airs a "Star of the Month" throughout the year in which most, if not all, feature films from a film star are shown during that night's schedule. August is the only month to not have a "Star of the Month" due to "Summer Under the Stars". The network also marks the occurrence of a film actor's birthday (either antemortem or