If there was any doubt remaining about the cultural pull of NPR’s “Serial” podcast, marketers have started trying to jump in on the conversation.

Best Buy was the latest brand to post a tweet about the weekly podcast, in which journalist Sarah Koenig investigates the conviction of Adnan Syed in the 1998 murder of his ex-girlfriend.

The electronics retailer actually plays a prominent role in the story. Prosecutors said in court that Mr. Syed used a a pay phone in the parking lot of a Maryland Best Buy to call for a ride on the day of his ex-girlfriend’s disappearance. But Ms. Koenig was unable to corroborate that there was any pay phone in that lot.