The TV presenter has taken most of the year off to focus on his health after his drink-drive arrest in March.
However, Ant McPartlin, 43, has broken his Twitter silence after a month-long absence.
Ant wrote a message to fans this week on the account he shares with Declan Donnelly.
Lisa Armstrong’s ex spoke out to inform the pair’s 6.75 million followers about an ITV show.
“Miss you Ant, can’t wait to see you back”
He wrote: “Exciting show alert. Tonight ITV 9pm, Re-Play 2018 with Richard Osman.
“Play along and see if you’ve been paying attention to 2018. Enjoy! A.”
Fans flooded the post with messages of support for Ant.
One told him: “Miss you Ant, can’t wait to see you back.”
While another added: “Hi Ant, nice to see a tweet off you.”
A third chimed in: “Don’t care about the show, just love that Ant tweeted.”
It was reported earlier this month that Ant is preparing to go back to work for Britain’s Got Talent 2019 auditions in January.
A source told The Sun: “ITV is very excited about Ant and Dec being reunited.
“But Ant’s recovery has been everyone’s first priority.”