Five pre-recorded semi-final episodes will air over the next few weeks before a live final airs in October.
Auditions were held earlier this year and televised in the spring, but the live finals were delayed in May due to the peak of the coronavirus pandemic.
ITV will also air a one-time catch-up show to remind viewers of the biggest and best auditions seen earlier in the year.
David Walliams, Amanda Holden and Alesha Dixon will all be back in the jury.
But the show will be very different as Simon Cowell has to resign from his post as judge following his bicycle accident.
Simon has undergone surgery to treat his injuries and is recovering at his home in the United States.
He will be replaced by BGT winner Ashley Banjo.
Ashley won the show with her dance group Diversity in 2009.
The music mogul said Ashley “will be a fantastic addition to the panel.”
He told The Sun Sunday, “He knows the power of the show and his responsibility.
“I couldn’t think of a better person to sit in my seat while I followed the doctor’s orders.
“I hate this stupid bike. ”
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