During the final audition episode, previous filming locations were recapped, including Manchester.
As the titles rolled, each location’s name appeared on screen, but Manchester featured a heart behind the lettering.
The tribute comes just days after a terror attack following Ariana Grande’s concert in Manchester.
The BGT voiceover said: “We've searched the nation for a star,” before viewers were left emotional at the gesture.
Britain’s Got Talent 2017: Fans praise ITV after show pays tribute to Manchester bombing victims
It really made me smile that BGT put a heart around Manchester's name #BGT
Britain's Got Talent viewer
Fans of the show instantly took to social media to praise show bosses for re-editing the segment.
One viewer tweeted: “It really made me smile that BGT put a heart around Manchester's name #BGT.”
“Love the fact #BGT put a heart around Manchester's name,” posted another.
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A third said: “Nice subtle touch putting a heart behind Manchester #BGT.”
“I like the inclusion of the heart behind Manchester tonight. #BGT,” added another.
A fifth wrote: “Love how they put a heart behind manchester #BGT,”
Britain's Got Talent continues tomorrow on ITV at 7.30pm.