DANCING On Ice host Phillip Schofield issued a warning to Stephen Mulhern after he took over his job this week.
The This Morning star, 59, was having to isolate at home having tested positive for Covid earlier in the week.
ITV parachuted in Stephen, famous for fronting Catchphrase and appearing on Ant and Dec's Saturday Night Takeaway.
But Phillip made a cheeky dig at the star as he watched from his home with a roast dinner and a gin and tonic.
Stephen, 44, was hosting with Holly Willoughby and said on the show: "I know Phil is watching. Phil, I'm having fun."
But the presenter replied with mock iciness writing: "Not too much fun Mulhern... I know where you live."
Dancing on Ice reunited Stephen and Holly, who fronted Saturday morning children's shows together for ITV in the early 2000s.
Posting a picture of them together before the show he wrote: "Back with my right hand woman @hollywilloughby for the first time in 16 years!"
Most read in TV
Phillip was ruled out after testing positive for Covid last Monday and will also not be able to front This Morning today.
It was an eventful episode of Dancing On Ice, with Connor Ball suffering an injury that led to him bleeding in front of viewers.
There was also a heartbreaking tribute to the show's former star Sean Rice, who died last month.