Actor Jake Wood, who plays love rat Max, was forced to clarify his scene after the show had aired, as fans descended on Twitter thinking he had fluffed his line.
In the final live scene of the episode, Max's daughter Lauren had taken off in a car, leaving a distressed Max panicking in his house. When his daughter Abi questioned his behaviour, Max revealed: "She knows... that you killed Lucy."
However, after the show, it appeared some fans couldn't work out whether Max had said "you" or "who".
Many fans said they had "rewinded the scene but still couldn't work out what was said", and it certainly caused quite a debate on Twitter!
Jake, who had retweeted hundreds of confused fans, was forced to clarify the scene and eventually settle the debate late last night: "For the benefit of the Internet and mankind in general please RT YOU. Thank YOU (see what I did there?) #EELive #justthebeginning."
Jo Joyner, who plays Max's ex-wife Tanya, wrote on Twitter: "@mrjakedwood I never heard a problem! Just re watched it and it's all there babe. Don't worry, I'll be in tomorrow to take the heat off ya!"
Even the official EastEnders Twitter account wrote: "MAX SAID 'YOU KILLED' NOT 'WHO KILLED'... WHAT THE... ?!? #EELive."
EastEnders' 30th anniversary week kicked off last night and there were plenty of surprises in store! Viewers saw several live elements in yesterday's episode, as the clues to Lucy's murder began to unravel.
What happened in yesterday's episode:
Peggy Mitchell made a return! After paying a visit to Dot, Peggy clashed with The Queen Vic landlord Mick Carter, who delievered her famous words: "Get Outta My Pub!"
Christian Clarke returned back to Albert Square in time for his sister Jane's wedding to Ian Beale.
Richard Blackwood made his debut as Walford's new villain, and after entering Phil Mitchell's house, we learned that he has a connection to Phil's cousin Ronnie Mitchell.
After grabbing her bouquet from the table, Jane opened up a wedding card delivered by Lauren Branning, which read: "I know what happened to Lucy. She was killed at home."
After the first episode, executive producer Dominic Treadwell-Collins teased: "We're just warming up... #EELive."
EastEnders continues tonight (18 February) at 8pm on BBC One.
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