As fans already know, Glenda is to go public with the news of Phil's infidelity in the Queen Vic this Thursday - leaving Shirley wondering whether she can believe the schemer's allegations.
However, in the aftermath of Glenda's bombshell, Shirley is soon left in no doubt that Phil has been unfaithful. Paying a visit to the R&R, she overhears Phil and Glenda arguing in the office and, while eavesdropping on the row, she listens in horror as Phil speaks openly about his betrayal.
When Shirley walks in on the pair, Phil is shocked to have been caught out at last. He tries to protest that it's not what Shirley suspects, but she's heard enough of his lies and won't listen.
Later, when Glenda causes more trouble on the Square, a furious Shirley has had enough and drags her into the chip shop. Will Glenda live to regret crossing Shirley?
These scenes air on Tuesday, March 8 at 7.30pm on BBC One.
Over on Hollyoaks, Silas's dark storyline will come back to the forefront of the soap early next month as he sets his sights on another potential victim.
The drama begins when Jamil and Lee start their own radio show for students and recruit Lynsey to be their on-air agony aunt.
However, Lynsey's advice to sexually-charged young people doesn't go down well with Silas and it seems she could be painting a big target on her back.
Later, Silas grows more furious when Lynsey dresses up in a sexy nurse's outfit for the pair's webcam. In the aftermath of her radio antics, Lynsey is horrified as her flat plunges into darkness and Silas grabs her from behind. Is he about to strike again?
These scenes air on Friday, March 11 at 6.30pm on Channel 4.
Coming up in Emmerdale, as Cain's attempts to intimidate Jai continue to be unsuccessful, he decides to change tack and target Nikhil instead.
Relations between Cain and Charity hit an all-time low in the coming days when the hardman informs Jai that the feisty blonde used to be a prostitute, declaring that it proves she'll do anything for cash.
However, Cain fails to put off Jai - prompting Charity to gloat as she tells her ex-partner that she has no more secrets and there's nothing else he can do to drive a wedge between them.
Not one to be deterred, Cain turns his attentions to Nikhil and orders the businessman to have a word with his brother or suffer the consequences. Making sure he gets the message, the bad boy leaves Nikhil bound and gagged in a bin!
These scenes air on Monday, March 7 at 7pm on ITV1.
Finally, Coronation Street's Sian returns from holiday in a week's time, but things between her and Sophie fail to improve.
When she arrives back, Sian leaves Sophie crushed by announcing that she's moving back to her mother's. The situation gets worse when Sophie gets jealous about the fact that Sian made friends with another girl during her time away.
A row then brews between the pair - forming part of the build-up to Sophie's roof fall horror, which airs early next month as her personal problems reach crisis point.
These scenes air on Friday, March 11 at 7.30pm on ITV1.
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