Doctor Who number of covers: 38    Poirot number of covers: 13    The X-Files number of covers: 13    Lost number of covers: 6    Fringe number of covers: 5    Game of Thrones number of covers: 8    Boardwalk Empire number of covers: 5    Breaking Bad number of covers: 5    Better call Saul number of covers: 4    Walking Dead number of covers: 4    Cheers number of covers: 11    Seinfeld number of covers: 8    Friends number of covers: 10    Frasier number of covers: 11    How I Met Your Mother number of covers: 9    Modern Family number of covers: 8    Magnum P.I. number of covers: 8    Two and a half Men number of covers: 12    The Big Bang Theory number of covers: 11    Star Trek number of covers: 5    Star Trek TNG number of covers: 7    Star Trek DS9 number of covers: 7    Star Trek Voyager number of covers: 7    Star Trek Enterprise number of covers: 4    Star Trek Discovery number of covers: 1    The Orville number of covers: 3    Sense8 number of covers: 4    24 number of covers: 11    Black Mirror number of covers: 8