“Glee” staff and producers are still figuring out exactly how to handle the death of Cory Monteith, said Kevin Reilly, Fox entertainment chairman.

The confirmed facts: The fifth season premiere has been delayed a week, to air Sept. 26. The first two episodes of “Glee” will be Beatles-themed, and the third episode of the season will deal with the death of Finn, the character played by Monteith’s. All of the music during the Monteith tribute will go to a charity fund. After that, the show will take an indefinite break as Fox airs the World Series, as usual.

However, Reilly told a group of reporters at the TCA press tour, it’s not clear whether the departure of football player-turned-singer Finn will deal with drugs. (Monteith, 31, died from heroin and alcohol last month.) There will be drug-related public service announcements that air during the episode, Reilly said.

Production on the newest season of “Glee” just started this week; Lea Michele, Monteith’s real-life girlfriend and on-screen love interest, tweeted that she was back at work, and thanked fans for their support over the last few weeks.

Meanwhile, “Glee” star Darren Criss appeared on TBS late-night show “Conan” last night, and talked about remembering Monteith.