Last night EastEnders viewers couldn't believe their eyes when, during a scene on the tube, it seemed that a girl got off the tube, went to an off licence and then got back on the SAME carriage that she had left! Oops!
In the scene, Hayley Slater was talking to another passenger on the tube, who said she was sleeping rough and needed some money for essentials. Hayley gave her some cash and then the girl got off.
However, in a later scene the girl was back on the SAME tube, this time with a four pack of beer! Something that shouldn't be possible.
This blunder was spotted by a number of viewers including one Twitter user called Claire, who said, 'Imagine being able to get off the tube, go and buy yourself some drinks and then hop back onto the same train😂 #Eastenders'.
Others commented on the mistake...
While many viewers commented on this mistake, others asked why this scene was even needed, 'interrupting' the tragic storyline which unfolded yesterday. One viewer said, '#EastEnders you smashed it the tube scenes were distracting, but the stabbing felt so real, someone #findshaki those scenes were unbelievable.'
Now have a look at the original names of some of our favourite TV shows.
RADIO Original names of our favourite TV shows - slider
Friends
We all know and love it as Friends, but the TV show could have been called something very different...
Six of One
Six Of One just doesn't have the same ring to it! Here are the cast Jennifer Aniston, Matt Le Blanc, Courteney Cox, Matthew Perry, David Schwimmer and Lisa Kudrow,
Only Fools and Horses
We know it as Only Fools and Horses with Del Boy's infamous Reliant Regal Supervan.
Readies or Big Brother
But it was originally due to be called Readies or Big Brother. Good job they went with Only Fools and Horses, then!
The Big Bang Theory
The Big Bang Theory could have been called something a lot less catchy...
Lenny, Penny and Kenny
Yep - Sheldon was very nearly called Kenny!
Saturday Night Live
US variety show Saturday Night Live is well known around the world - here's Star Wars actor Adam Driver introducing the show.
NBC's Saturday Night
Not quite the same, is it? Here's Ariana Grande's ex-fiancé Pete Davidson, who works on the show as a comedian.
Hannah Montana
Hannah Montana, was a musical comedy starring Miley Cyrus in the lead role and was named after the main character, but it could have been very different.
Alexis Texas
The lead character was originally going to be called Alexis Texas... Which means that the show would also have been called Alexis Texas!
Lost
The gripping TV show Lost, starring Terry O'Quinn as John Locke (pictured), kept people guessing the ending for years.
Nowhere
Lost could have been called Nowhere!
New Girl
Known as New Girl, the TV show starring Zooey Deschanel as kooky teacher Jess Day could have been called something else entirely.
Chicks and D---s
While New Girl was the name they finally settled on, it had a much ruder working title - and Zooey Deschanel refused to sign onto the project whilst that was the name.
Buffy The Vampire Slayer
Supernatural TV series Buffy The Vampire Slayer was a hit in the late 90s and early 00s. It was named after the lead character Buffy Summers, played by Sarah Michelle Gellar.
Slayers
It was originally going to be called Slayers.
The Good Wife
Known as The Good Wife, the TV series starred Christine Baranski as Diane Lockhart (pictured), as a top litigator and senior partner of a Chicago law firm.
Leave the B-----d
The series, which also starred Sex and the City's Chris Noth (pictured), was originally going to be called Leave the B-----d.
NCIS
NCIS finished its 14th season earlier this year - this moment is from the gripping season finale.
NavyNCIS
Starring Duane Henry, Emily Wickersham, and Wilmer Valderrama (above) NCIS was originally going to be called NavyNCIS.
This isn't the first time that eagle-eyed viewers have noticed a mistake in EastEnders. Last year EastEnders' fans were left confused by a hilarious kitchen gaffe. In the episode Robbie Jackson and Donna Yates get trapped in a kitchen, as part of a cunning plan, but there was a big flaw.
The pair were left in the kitchen, banging on the door, but many viewers took to Twitter to point out that Robbie was actually banging on an emergency exit! While Robbie didn't actually try and open the door we'd hope that a fire exit would open.
One viewer commented, 'Locked in a kitchen.. with that.. only dopey Robbie can't go out the fire exit 🙄#eastenders'
EastEnders continues weeknights on TV.