I found RT, CNN and Al Jezeera most biased. (Al Jazeera is viewed as Qatar propaganda arm and got banned in few countries for biased views on Hamas, Muslim Brotherhood, and anti Israel views ..etc - since October 7 attack it got even worse.)
RT is outright propaganda tool of Russia.
CNN can't stand Trump.
In relation to PBS, yes they are biased but not as much as 3 main ones above.
Interesting read about PBS here: https://www.allsides.com/news-source/pbs-newshour-media-bias#what-this-rating-means
Despite instances of left-leaning story choice, reviewers from the left, center, and right noted many instances of balance.
Awake magazine had an excellent article on this subject.
Readers were encouraged to meditate on those questions:
PROVIDER: Does the report come from a credible, authoritative person or organization? Does the program or publication have a reputation for seriousness or for sensationalism? Who provide the funds for the news source?
SOURCES: Is there evidence of thorough research? Is the story based on just one source? Are the sources reliable, fair, and objective? Are they balanced, or have they been selected to convey only one point of view?
PURPOSE: Ask yourself: ‘Is the news item primarily to inform or entertain? Is it trying to sell or support something?’
TONE: When the tone of a news item is angry, spiteful, or highly critical, it suggests that an attack is under way and not a reasoned argument.
CONSISTENCY: Are the facts consistent with those in other articles or reports? If stories contradict one another, be careful!
TIMELINESS: Is the information recent enough to be acceptable? Something thought to be correct 20 years ago may be discounted today. On the other hand, if the news item is a breaking story, it may lack complete and comprehensive information.
Sorry - lets just go back to PS discussions or news - no need to reply to this post.