There But for the Grace - S1.E4

There is no one like Miss Hilary Booth, on stage or on the radio. But when Hilary discovers that an adversary from her past will be making a stop at WENN, will she rise to the occasion and be a gracious host? Or be the diva that she is reputed to be? However, Grace Cavendish has a relationship with someone else at the station besides Hilary, and will that keep Grace at WENN...for good?