Launched as The Sci-Fi Channel, it was relaunched as Syfy on 13 April 2010, as part of an ongoing global rebranding.

[2] On 14 June 2022 Sky confirmed that the channel rebrand would take place at 11am on 26 July, accompanied by a refreshed schedule of new and existing content.

[3][4] It was launched in 1995 as a localised variant of the US network Sci Fi Channel (now Syfy), with a similar programming line-up.

[5][6][7] As of April 2008, the channel reached an average of three million UK and Ireland households a week, appealing equally to male and female demographics.

The following is a list of the ten most watched shows on Syfy (previously Sci-Fi), based on Live +7 data supplied by BARB up to 10 September 2017.