Answer the question at the end by quoting:

Moss was born in London, son of Alfred Moss, a dentist of Bray, Berkshire, and Aileen (nee Craufurd). He was brought up at Long White Cloud house on the right bank of the River Thames. His father was an amateur racing driver who had placed 16th at the 1924 Indianapolis 500. Stirling was a gifted horse rider as was his younger sister, Pat Moss, who became a successful rally driver and married Erik Carlsson.
During his driving career, Moss was one of the most recognised celebrities in Britain, leading to many media appearances. In March 1958, Moss was a guest challenger on the TV panel show What's My Line? (episode with Anita Ekberg). In 1959 he was the subject of the TV programme This Is Your Life. On June 12 the following year he was interviewed by John Freeman on Face to Face; Freeman later said that he had thought before the interview that Moss was a playboy, but in their meeting he showed "cold, precise, clinical judgement... a man who could live so close to the edge of death and danger, and trust entirely to his own judgement. This appealed to me". Moss also appeared as himself in the 1964 film The Beauty Jungle, and was one of several celebrities with cameo appearances in the 1967 version of the James Bond film Casino Royale. He played Evelyn Tremble's (Peter Sellers) driver. For many years during and after his career, the rhetorical phrase "Who do you think you are, Stirling Moss?" was supposedly the standard question all British policemen asked speeding motorists. Moss relates he himself was once stopped for speeding and asked just that; he reports the traffic officer had some difficulty believing him. As related in the book The Life and Times of Private Eye, Moss was the subject of a less than respectful cartoon biography in the magazine Private Eye. The cartoon, drawn by Willie Rushton, showed him continually crashing, having his driving licence revoked and finally "hosting television programmes on subjects he knows nothing about". It also made reference to the amnesia Moss suffered from as a result of head injuries sustained in the crash at Goodwood in 1962. According to the book, Moss responded by offering to buy the original of the cartoon, an outcome the book describes as "depressingly common" for its satirical cartoons about famous people. Moss is the narrator of the popular children's series Roary the Racing Car which stars Peter Kay, a role he took on, having been approached by both David Jenkins, who had the original idea, and Keith Chapman, the latter the creator of Bob the Builder, as he saw the TV show as a way of introducing motorsport to the next generation. He is one of the few drivers of his era to create a brand from his name for licensing purposes, which was launched when his website was revamped in 2009 with improved content. Moss is also a supporter of the UK Independence Party.

When did he become the narator of this series?

having been approached by both David Jenkins, who had the original idea, and Keith Chapman, the latter the creator of Bob the Builder,

Answer the question at the end by quoting:

Gary Wright was born and raised in Cresskill, New Jersey. A child actor, he made his TV debut at the age of seven, on the show Captain Video and His Video Rangers, filmed in New York. Among other acting work, he appeared in TV and radio commercials, before being offered a part in the 1954 Broadway production of the musical Fanny. Wright played the role of Cesario, the son of Fanny, who was played by future Brady Bunch matriarch Florence Henderson.
The only members from the original lineup, Wright and Mike Harrison relaunched Spooky Tooth with Jones and Graham from Wonderwheel, and Chris Stewart, formerly the bassist with English singer Terry Reid. Salewicz visited the band while they were recording at Island's Notting Hill studio and remarked of Wright's role in the group, "it is clear who is the leader of this brand of Spooky Tooth, and, I suspect, of the original, too"; Salewicz described Wright as "urbane, loquacious with the remnants of a New Jersey accent, and a touch of Dudley Moore about the face". On their new album, You Broke My Heart So I Busted Your Jaw (1973), Wright composed six of the eight tracks, including "Cotton Growing Man", "Wildfire" and "Self Seeking Man", and co-wrote the remaining two. With the group's standing having been elevated since 1970 - a situation that music journalist Steven Rosen likened at the time to the Yardbirds, the Move and other 1960s bands after their break-up - Spooky Tooth toured extensively to promote the album. Rolling Stone reviewer Jon Tiven praised Wright's songwriting on You Broke My Heart, adding: "there is tremendous consistency to these originals ... and 'Wildfire' is ample proof that Gary could have written for the Temptations if he really wanted to." The band released a follow-up, Witness, in November 1973, by which point Graham had departed, with Mike Kellie returning on drums. By February 1974, Stewart and Harrison had also left. In January that year, Wright accompanied George Harrison to India, where they journeyed to Varanasi (Benares), the Hindu spiritual capital of India, and home to Harrison's friend Ravi Shankar. The visit would influence the spiritual quality of Wright's lyrics when he returned to his solo career. In England, he and Harrison worked together on The Place I Love (1974), the debut album by English duo Splinter. In addition to playing keyboards, Wright served as what author Simon Leng terms "a sounding board and musical amanuensis" on the project, which was the first album released on Harrison's Dark Horse record label. Wright regrouped with Spooky Tooth for a final album, The Mirror (1974), with Mike Patto as their new vocalist. Following further personnel changes, The Mirror was issued by Goodear Records in the UK in October 1974, a month after Wright had disbanded the group.

What did they do in 1972?
On their new album, You Broke My Heart So I Busted Your Jaw