As for propaganda, I think they all play that game.
Seriously - they don't. Sky, ITN and BBC are as far away from RT journalistically as it is possible to be.
RT is propaganda - clever propaganda, but propaganda nonetheless. Sky, ITN and the BBC are editorially independent of the UK govt, not a mouthpiece for it.
If you believe that, it's up to you. I am not denying RT is propaganda, but our news organisations all have agendas of their own as well. Not on the same level as RT, but I don't believe that our news organisations are completely free of agenda.
Our news organisations are so independent of the government, that goverement can control at any time, what they report, if it so choses.