TV tonight: illicit affairs and revenge in a wonderful period drama

Emma Harte’s head and heart are torn in A Woman of Substance. Plus: a hen do from hell. Here’s what to watch this evening

9pm, Channel 4
The rags-to-riches period drama continues with young Emma Harte (Jessica Reynolds) choosing a secret relationship with her employer’s son, Edwin Fairley (Ewan Horrocks), over taking the chance to move to Leeds. It can’t end well, though, as present-day Emma (Brenda Blethyn) still holds a grudge with the Fairleys. It continues on Thursday with Lenny Rush giving a heartbreaking performance as Emma’s brother. Hollie Richardson