Collins - who is a personal friend of the controversial blogger Cameron Slater - said she had other information on Press Gallery journalists that she might make public.
Collins' office did not respond to queries over whether she intended to take the complaint further, where it could be considered by the Broadcasting Standards Authority.
Collins was furious over the report during John Key's China visit that led TVNZ to claim she had burned her last chance with John Key.
A TVNZ source said it appears the report misconstrued events by assuming that Key had not already heard revelations about her Oravida relationship when he gave her a final warning.
Political complaints from governments are common in an election year.
But a number of events over the past 12 months have put a cloud over the relationship between politicians and media.
TVNZ is already on the back foot with an inquiry into possible Labour bias in its Maori and Pacific department while Shane Taurima was in charge.
In August last year the Press Gallery was critical over revelations that a Parliamentary Services inquiry had tracked journalist Andrea Vance's movements around Parliament.