When Del gives Heather the ring, he says he got it from Abdul, a friend from Hatton Garden. This fits in with "To Hull and Back (1985)", as Del, Rodney, and Uncle Albert go to Holland for Boycie and Abdul.
The idea for the script was to demonstrate Del's love for children, and that he really could be a family man if he put his mind to it.
Rosalind Lloyd, who plays the character of Heather, played another character named Heather in The Wild Geese (1978).