Series 1 Episode 1: Luke & Lucy
Richard, an amateur radio enthusiast, who has Asperger's and won't eat on a date.
Series 1 Episode 3: Hadyn & Sam
A skater and avid Chelsea fan, 24-year-old Hadyn has Crouzon Syndrome.
Series 2 Episode 1: Michael, Brent and Sarah
Michael, 26, has autism, Brent, 21, Tourette's syndrome and Sarah has expressive aphasia
Series 2 Episode 2: Sam, Ray & Steve
Sam has achondroplasia; Ray, a learning disability and Steve, a facial disfigurement
Series 2 Episode 3: Kate, Damian & Oliver
The Undateables this time include incurable romantic Kate
Series 3 Episode 1: Mary, Daniel & Hayley
This episode features Mary, a mature student with achondroplasia
Series 4 Episode 1: Alex, Matthew & Daniella
A life model with a stammer gets his tape measure out. And there's a date at Brands Hatch.
Series 4 Episode 3: Richard, Chris & Christina
Richard, who has Asperger syndrome, has high hopes for his posh tea with Tammy at a hotel
Series 4 Episode 4: Ruth, Daniel & Michael Revisited
Daniel, who has autism, goes on a date with Charley, and Ruth meets comedian Nathalie
Series 4 Episode 5: Two Weddings and a Baby
Brent and Steve plan to pop the big question and Carolyne prepares to become a mum