Top 5 in Top 10 completed British TV series worth watching a second time.
Trailer for the second season of the British TV series, Torchwood
While Torchwood never officially ended, it's been 10 years since this British TV series was last aired, so it doesn't look like it will return. Torchwood is a spin-off of the long-running sci-fi series Doctor Who. While the show for parents is family-oriented, Torchwood is aimed at a more mature audience with themes of sex and violence throughout its broadcast.
The third season tells a single story that is shown for five nights in a row, and it is often considered one of Torchwood's best stories ever, if not the entire series. Torchwood's later timeline allows it to explore darker, more difficult themes than its original show, opening a whole new dimension to the Whoniverse. This spin-off is a must-see for Doctor Who fans, but new audiences can still follow it.