This is an article that heavily mentions the BBC, the broadcaster of Panorama, being threatened by the Post Office. Other than the Panorama production company,

This is an article that heavily mentions the BBC, the broadcaster of Panorama, being threatened by the Post Office. Other than the Panorama production company, whom chose to be interviewed by the BBC, in this instance where else would you go for a direct source? If I were to hazard a guess, you haven't chosen to read the article, and have no motivation to actually substantiate your distrust for them past a vague "it's bullshit".