The duo admitted today that they had tuned into the rival reality series, but thought it was little more than "okay" and "alright"
And Dec called on telly bosses to split the shows up to make sure they don't clash in future.
He said: "I think it's a shame they overlapped, my family wanted to watch both. They obviously switched over when I came on though!"
The Geordie TV presenter also played down any competition between the pair, insisting: "They're not similar shows, they're not the same. If it was The Voice UK and X Factor... but we're very different, I think the audience should be able to watch both."
Reviewing the show, Dec added: "For me, I didn't laugh, I like a bit of fun. It didn't make me laugh."
Co-host Ant agreed, saying: "It was okay, it was okay. I just worry that I've seen it and I've seen the chairs swivel.
"I think it's good to have competition, I wouldn't sit here to slag it because it doesn’t deserve it, it's well made, it's alright."
The Voice UK and Britain's Got Talent continue tomorrow night on BBC One and ITV1 at 7PM and 8PM respectively.