Other pay-extra networks launched in the years subsequent to HBO's launch including Showtime, which launched on September 16, 1976 with a similar format; and movie-oriented services such as Star Channel (which launched in April 1973, and later became The Movie Channel in November 1979) and HBO-owned Cinemax (which launched on August 1, 1980, and later became more known for its late-night softcore pornographic films).