Married At First Sight fans are treated to a double bill tonight as the new Australian series launches on E4, followed by the UK version catch-up show.
Walking Dead spin-off World Beyond begins streaming its final series on Amazon today promising plenty of zombie scares.
Read more: The best TV to watch this autumn
BBC Two begins a new series looking at the Blair and Brown partnership and how they created New Labour, while earlier in the evening we head into the next round of super tough quiz show Only Connect.
Foodie trio Gordon, Gino and Fred conclude their Greek odyssey tonight on ITV with delicious food and lots of laughs on the menu.
The best TV to watch on Monday, 4 October, 2021
Married At First Sight Australia and UK - E4 - 7.30pm and 9pm
If you couldn't get enough of the rebooted UK series of Married At First Sight, you're in for a treat tonight.
Wrapping up the series is the reunion episode where all of the contestants get back together to give an update on where life has taken them since the show ended, and judging by the trailer, it looks like there could have been some splits already.
Read more: MAFS UK teases heartbreak in reunion episode
Before we catch up with the UK cast, the new Australian series will debut, matching 18 singles looking for The One.
The last MAFS Australia was a huge hit for E4 so expect more drama and shocking moments that will put Morag, Franky and Nikita in the shade.
The Walking Dead: World Beyond - Amazon Prime Video
This teen spin-off series of the hugely popular Walking Dead begins streaming its second, and sadly final, series today.
Featuring teenagers dealing with the zombie apocalypse in Nebraska, they're not only trying to survive the flesh-eating hordes but also the other humans willing to trample over them to survive.
Blair & Brown: The New Labour Revolution - BBC Two - 9pm
Winding back the clock to 1983 for the beginning of this documentary series about New Labour, we start with Blair and Brown entering Parliament with very different backgrounds but similar ideals.
The series charts how the close friendship and partnership that was the foundation for New Labour and will follow their leadership and the years afterwards as well as some of the difficulties left by their legacy.
Only Connect - BBC Two - 8pm
The toughest show on TV is about to head into the next round, with the format of when teams are knocked out almost as complex as the questions themselves.
Victoria Coren Mitchell presides over the quiz that leaves you feeling like a genius after getting even one question right.
Gordon, Gino & Fred Go Greek! - ITV - 9pm
Concluding their two-part Greek odyssey tonight, Gordon, Gino and Fred leave behind the islands and head for the mainland and Athens.
The trio grab their chance to race around the Olympic stadium before quenching their thirst with a liquid Greek salad cocktail.
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