Question: Who created the British television series which has Banana as a sister series? 
Context: Canada's Worst Handyman is a Canadian television series broadcast on Discovery Channel.  The show is produced by Proper Television, and shares its production with "Canada's Worst Driver", including executive producer Guy O'Sullivan and host Andrew Younghusband.  The series is based on a one-off 2004 episode of the "Britain's Worst" series, titled "Britain's Worst DIYer".  Like sister series "Canada's Worst Driver", there have been similar adaptations in other English-speaking countries, in the US in 2011, with "America's 10 Worst DIYers", in Britain with a "Britain's Worst" 2005 spin-off series, "Britain's Worst DIYer".  Six seasons of the show have been completed. I Survived... is a documentary television series produced by NHNZ that airs on Lifetime Movie Network.  The series premiered on March 24, 2008 and in the past has aired new episodes Sunday nights.  The show currently airs on Friday evenings at 8 PM Eastern Time followed by sister series "I Survived... and Back" (in which people share their near death experiences).  The show allows survivors to explain – in their own words – how they overcame life-threatening circumstances without dramatic reenactments.  Most episodes feature three separate stories involving kidnapping or getting stranded in a remote location; however, some only feature two. Banana is a 2015 British television series created by Russell T Davies and aired on E4.  The sister series to Channel 4's "Cucumber" and the 4oD documentary series "Tofu", "Banana" is a series focusing on LGBT youth in Manchester, on the vicinity of the "Cucumber" narrative.  Unlike "Cucumber", which is a self-contained serial following the story of one gay man, "Banana" is an anthology series focusing on the wider LGBT spectrum.  The series was nominated for the GLAAD Media Award for Outstanding TV Movie or Limited Series. Hangin' with Mr. Cooper is an American television sitcom that originally aired on ABC from September 22, 1992 to August 30, 1997, starring Mark Curry and Holly Robinson.  The show took place in Curry's hometown of Oakland, California.  "Hangin' with Mr. Cooper" was produced by Jeff Franklin Productions, in association with Warner Bros.  Television (it was produced by Lorimar Television for the first season only, before it was absorbed by Warner Bros.), and also became produced by Bickley-Warren Productions by the third season.  The show originally aired on Tuesdays in prime time after sister series "Full House" (which was also created by Jeff Franklin and set in the San Francisco Bay Area).  The show found its niche as an addition to the "TGIF" Friday night lineup on ABC, and was part of the lineup from September 1993 to May 1996 (spanning the show's second, third and fourth seasons; airing in-between "Step By Step" and the news magazine series "20/20"), before moving to Saturdays for its fifth and final season. VR Troopers (Virtual Reality Troopers) is a syndicated live action superhero-adventure television series produced and distributed by Saban Entertainment from 1994 to 1996.  The show tried to profit from the fascination with virtual reality in the mid-1990s as well as the success of Saban's other property, "Power Rangers".  "VR Troopers" was the first official "sister series" to "Mighty Morphin' Power Rangers".  Much like it, this was an Americanization of a Japanese tokusatsu children's program series by Toei.  The series is a co-production of Toei Company and Cyberprod. The Banana Splits in Hocus Pocus Park is a 1972 live-action/animated television film made by Hanna-Barbera featuring the characters from "The Banana Splits" television series.  Mixing live action sequences shot at Kings Island amusement park in Cincinnati, Ohio with animation, the film follows the Banana Splits as they attempt to rescue a young girl who is kidnapped by a power-hungry witch.  Like many animated Hanna-Barbera productions of the 1970s, "The Banana Splits in Hocus Pocus Park" contained an inferior laugh track created by the studio. Cucumber is a 2015 British television series created by Russell T Davies and aired on Channel 4.  The series focuses on middle-aged Henry Best (Vincent Franklin), following a disastrous date night with his boyfriend of nine years, Lance Sullivan (Cyril Nri).  Henry's old life shatters, and he embarks on a new life with unfamiliar rules. "", a manga by Clamp, has been adapted into four different anime versions between 2005 and 2009, including a two-season anime television series, an anime film, and two original video animation (OVA) series with screenplay provided by Nanase Ohkawa and music composed by Yuki Kajiura.  Bee Train adapted the manga series into a fifty-two-episode anime entitled "Tsubasa Chronicle" directed by Kōichi Mashimo with Hiroshi Morioka joining on as co-director for season two.  Hiroyuki Kawasaki scripted both seasons.  Production I.G adapted the manga series into both an anime film entitled "Tsubasa Chronicle the Movie: The Princess of the Country of Birdcages" directed by Itsuro Kawasaki and two OVA adaptations directed by Shunsuke Tada entitled "Tsubasa Tokyo Revelations" and "Tsubasa Shunraiki".  Set in a fictional universe involving alternative realities, the story follows a group of five travellers—Syaoran, Sakura, Kurogane, Fai D. Flourite, and Mokona—as they search for fragments of Sakura's memory that take the form of feathers of great power and without which, Sakura will die.  The series features much crossover with the its sister series "xxxHolic", another manga by Clamp. Tofu is a 2015 British online documentary series created by Russell T Davies and presented by journalist and YouTube host Benjamin Cook, available on 4oD, Channel 4's video-on-demand service.  The sister series to Channel 4's "Cucumber" and E4's "Banana", "Tofu" is a documentary series that focuses on a range of sex attitudes in the twenty-first century from the viewpoint of everyday people.  Like "Cucumber" and "Banana", the name of the series refers to the same urological scale of hardness of the male erection which starts at "tofu", goes through "peeled banana" and ends at "cucumber" from a European study that inspired Davies. Deck Wars is a 2011 Canadian television series, airing on HGTV.  It is considered a sister series to "Decked Out", and like "Decked Out", stars Paul Lafrance and his deck building crew.  Unlike its sister series, "Deck Wars" is a game show that pits two teams of contestants against each other in building a deck in two days with a common theme.
Answer: Russell T Davies