Comedian Jimmy Kimmel used his brief appearance on stage at the Academy Awards to deliver pointed commentary about free speech, criticize CBS, and joke about President Donald Trump and First Lady Melania Trump, a moment that quickly generated widespread discussion across social media and entertainment media.

Kimmel was not hosting the ceremony - Conan O'Brien served as Oscars host for the second consecutive year - but he appeared to present the documentary short and documentary feature categories, a segment that blended comedy with political commentary.

The comedian opened his appearance with a joke about O'Brien's absence from the stage.

Kimmel said the host had "exposed his face to the sun and was incinerated," prompting laughter from the audience before he transitioned into presenting the awards.

During the segment, Kimmel turned to a broader discussion about the role of documentary filmmakers and the pressures faced by journalists and storytellers working in restrictive environments.

In that context, he made a pointed remark referencing the American media landscape.

"Let us just leave it at North Korea and CBS," Kimmel said while presenting the awards, according to Variety.

The line drew immediate attention from viewers because it appeared to reference ongoing controversies surrounding editorial decisions at the network.

According to reports cited by entertainment media, CBS recently blocked The Late Show with Stephen Colbert from featuring Texas State Representative James Talarico, and the network also canceled a previously promoted 60 Minutes segment after concerns linked to the Federal Communications Commission.

Kimmel himself has previously been involved in disputes surrounding media regulation and broadcast content.

Last autumn, the comedian was temporarily pulled from the air following scrutiny from FCC chairman Brendan Carr, a move reportedly taken by Disney, the parent company of ABC.

His remarks during the Oscars ceremony appeared to frame those experiences within a broader discussion about the importance of free expression in journalism and filmmaking.

"We hear a lot about courage at shows like this but telling a story that could get you killed for telling it is real courage," Kimmel said while discussing documentary filmmaking.

The comedian also used humor to reference contemporary political figures during the presentation.

While mentioning the Amazon MGM documentary Melania, Kimmel joked about how the president might react to the project not receiving recognition during the ceremony.

"Oh, man, is he going to be mad his wife was not nominated for this," Kimmel said.

The awards themselves recognized two documentaries focused on difficult political and social themes.

The documentary short Oscar was awarded to All the Empty Rooms, directed by Joshua Seftel and Conall Jones.

The documentary feature Oscar went to Mr Nobody Against Putin, with producers David Borenstein, Helle Faber, Alžběta Karásková, Radovan Síbrt, and Lucie Kon accepting the award.