From 2020 until 2023, he co-hosted the live morning show Studio 10, alongside Sarah Harris, Narelda Jacobs and Angela Bishop, on Network 10.
[2] MacManus began dancing in his hometown of Bray, County Wicklow, Ireland, before moving on to compete around Europe, eventually winning numerous juvenile, junior and amateur competitions.
In the show's thirteenth season[4][5] he returned along with fellow troupe member, Peta Murgatroyd, to compete as a dance-pro partner to a celebrity contestant.
The couple was eliminated on Week 6 after losing a "dance duel" to Disney Channel Star Roshon Fegan and his partner Chelsie Hightower.
They performed a Cha-cha-cha to Paul Anka's "She's a Lady" (popularized by Tom Jones), and received a score of "10" from judges Carrie Ann Inaba and Bruno Tonioli, and a "9" from Len Goodman.
He danced with Derek Hough and Kellie Pickler when they did a paso doble in the "trio round" which scored a 10 from Carrie Ann, a 7 from Len Goodman, and a 10 from Bruno Tonioli.
In December 2014, MacManus was a professional on the Christmas Special and partnered sixth series runner up Rachel Stevens.
[9] Following the conclusion of the 2020 season of Dancing with the Stars, MacManus was brought in as a new co-host for Network 10's live morning program Studio 10 during a substantial restructure at the network which saw the likes of Joe Hildebrand, Kerri-Anne Kennerley and Natarsha Belling depart and state-based Ten News First bulletins centralised to Sydney and Melbourne.
[11] The first edition of the re-formatted Studio 10 with MacManus as co-host went to air on 14 September 2020 which received a mixed reaction from viewers, critics and former staff, and criticised for its avoidance of discussions about news and topical issues in an attempt to keep the show light and free from controversy.
[12][13][14] In July 2022, MacManus was sideline reporter for 10 Football's coverage of Leeds United's pre-season tour of Australia.
Their engagement was announced by Tahyna's sister, Cheyenne, on 19 April 2013 via Instagram,[19] and they married on 25 January 2014 at St John Fisher Roman Catholic Church, Cronulla.
[24] MacManus tested positive to COVID-19 after finishing his Studio 10 shift on 5 January 2022, prompting him and his co-host Sarah Harris to isolate.
[26] In their place, The Bachelor Australia TV personality Matty Johnson and 10 News First reporter Lachlan Kennedy temporarily co-hosted Studio 10 while MacManus recovered.