The last weekend before the Scottish independence referendum is a crucial campaigning time - time to doorknock, leaflet and, of course, call for the resignation of the BBC's political editor Nick Robinson.
Polls say the vote on Thursday is too close to call.
With just four days to go, protestors decided the best way to seal victory for Yes was to march outside BBC Scotland's headquarters in Glasgow and protest against its "pro-union" bias while calling for the resignation of "liar" Nick Robinson today.
Blair McDougall, head of the Better Together Campaign, tweeted the image, saying: "Last Sunday before the vote. Doors to be knocked? No, let's do this instead."
The banner calls Nick Robinson a "liar" and says he is "typical" of the "British Biased Corporation".
In some photos, it can be seen next to a placard that says "Auntie Beeb" is "anti-democracy, anti-truth".
Despite its enormous size, the banner doesn't find space to give details of why they don't like Robinson.
It's safe to assume it has something to do with the fight Robinson got into with Alex Salmond on Thursday.
At the bizarre "international press conference" - where Yes Scotland was accused of planting supporters to applaud Salmond, the Scottish First Minister was heckled by Robinson who accused him of failing to answer a question about how RBS moving its base to London would affect an independent Scotland.
When Salmond gave an answer and tried to move on, Robinson kept asking the question, insisting Salmond had not answered it.
Salmond replied: "I've answered you." He added: "This is the first opportunity the BBC have had to heckle at a meeting."
Some members of the audience laughed and applauded when Salmond appeared to question the BBC's "impartial role as public sector broadcaster". Robinson was also heckled from the audience.
Despite the harsh words of the banner, one Tweeter said Robinson should be "flattered" for drawing such attention.
The Herald reported thousands had taken part in the demonstration this afternoon.
Another mocked up a different version of the banner...
The Herald reported that thousands had taken part in the demo.
One tweeter insisted it was 5,000 and demanded to know why the broadcaster wasn't covering it.
A BBC spokesman told the Huffington Post UK: "We believe our coverage of the referendum has been rigorously impartial and in line with our guidelines on fairness and impartiality."
People complained about Robinson's report on the Salmond press conference. The corporation responded that it was "balanced and impartial".
It said: "(Nick Robinson) asked two questions. The first question centred on the tax implications of RBS moving its legal headquarters to London; the second on why voters should trust a politician rather than businessmen.
"Nick Robinson's report showed the second question on trust, with a script line noting that Mr Salmond had not answered that point.
"Mr Salmond's answer on tax was lengthy. Since it was not possible to use it in full in a short news report, a series of clips were included making his central points - the job implications of the re-location of RBS, the accusation that the Treasury broke rules by briefing market sensitive information and his request that the BBC should co-operate with an enquiry.
"In addition Nick Robinson's script pointed out that the First Minister said there would be no loss of tax revenue."