Direct relations

Celebrity Big Brother
Franchise

Big Brother's Little Brother
After Show

Big Brother's Bit on the Side
After Show

Big Brother: Celebrity Hijack
Franchise

Ultimate Big Brother
Franchise

Dead Set
Franchise

Big Brother: Live from the House
Franchise

Big Brother's Bit on the Psych
After Show

Big Brother: Best Shows Ever
Serial specials

Big Brother: On the Couch
After Show

Big Brother Reveals More...
Serial specials

Big Brother's Big Brain
After Show

Teen Big Brother
Franchise

Big Brother Panto
Serial specials

Big Brother's Best Bits
Serial specials

Big Brother's Big Mouth
After Show

Big Brother
Parent Show

Big Brother
Reboot