When it comes to the vote surprisingly i dont think it is. But having said that i think producers manipulate the show alot in general. They also purposely make people look bad in the edit.

No i don't think it's fixed when it comes down to voting, but like many others i think the editing is manipulated, for me each hm should get the same amount of airtime, they should show some of the conversations of hms like Helen Shaun etc. For me a lot of hms know that arguments get airtime and i find that arguments are getting fake

The answer is yes.

Messing up with the voting figures is not the only way to fix the results. Changing the nomination rules, putting up twists to keep their favourite people in the game these are all fixing in my eyes.

Lets remember 4 in 4 out week. Amy&Sally got one nomination, Harriet got NO nomination at all, bb waited to see who were going to be nominated for eviction then they didnt like who were nominated and they changed the nomination rules in an instant. That is FIXING. They didnt just throw a twist on the houseguests, they threw a twist to keep the ones they favoured and evict the ones that they didnt like. There are many other examples in bb history and thats why i havent been really watching bb for a long time now.

totally rigged

I don't think it's rigged, but I do know they edit it heavily and try their best to influence the outcome.
Like Vanessa said, two posts above this one...bending rules, changing rules, twists etc.

Most of the time it works, but sometimes they just can't sway the public.