Tom Daley: Diving For Gold presented an intimate portrait of the diving champion's four-year journey from London 2012 until now.
The ITV programme covered the Plymouth-born star's sporting, public and personal life.
It included Tom's coming out when he revealed his relationship with Oscar-winning Hollywood writer Dustin Lance Black and the couple's engagement.
Viewers watched as Tom Daley: Diving For Gold detailed his OCD, his move to London from Plymouth, reaction from members of his family and coaching team and the gamble he is taking in learning a new dive in pursuit of Olympic gold in Rio.
Tom, who lost his dad - his biggest supporter - to a brain tumour in 2011, still feels the loss.
"He always knew what to say to make me feel better. He was always just there to be supportive," the 22-year-old said.
Tom will compete for Great Britain in this summer's Olympics, his third, in Rio de Janeiro.
The documentary served its purpose - it got everyone on Twitter excited about the Games. What's more, it was a veritable Tom Daley love-in.
Can't wait for the Olympics
-- Tanya (@TanyaGoode) July 30, 2016
Watching a programme on Tom Daley ITV ,excellent,wishing you the very best in Rio.@TomDaley1994
-- #hellomynameisMaggie (@gaeliccara) July 30, 2016
New found respect for @TomDaley1994 am watching documentary and am now rooting for him at Rio ??
-- toyah (@toyahgreenall) July 30, 2016
Loving Tom and Dustin
-- Fraser Hynd (@fraserhynd) July 30, 2016
-- Laura Prescott (@prescott884) July 30, 2016
-- Mrs H-M (@iammrshm) July 30, 2016
-- Andrew Daley (@actual_andrew) July 30, 2016
Tom is adorable
Watching @TomDaley1994's documentary on ITV and can honestly say he's my favourite person ever?
-- Ann Connor (@_annconnor) July 30, 2016
Im in love with @TomDaley1994, he's one of the most down to earth celebrities and his bravery is incredible ?
-- emily? (@maynardftlawson) July 30, 2016
-- Amie Davies (@amiedee1991) July 30, 2016
-- Dani (@danideaks) July 30, 2016
-- ReanneThompson (@ReanneThompson_) July 30, 2016
Loving the @TomDaley1994 program- always followed his career and he deserves to go far!
-- Lorna E (@LornaE) July 30, 2016