Eli Polonsky was the overnight local announcer during WBUR programming late Thursday and Friday nights into early Friday and Saturday mornings.

Eli's radio career unofficially began in eighth grade on a very low power homemade "station" that his friends could hear in the immediate area around his family home in Newtonville. A few years later, Eli hosted a weekly program at Newton North High School's internal station while a student there.

Eli began on the public airwaves at MIT's college and community radio station WMBR in 1982, first as a morning news announcer, and then as one of the weekly hosts of their 1960s/'70s music program "Lost and Found." Eli hosted the show weekly for 35 years until 2017, and interviewed musicians from bands of the era including The Grateful Dead, Jefferson Airplane, The Doors, Traffic, and many more. Eli also served as program director and promotions director of WMBR at different times.

Some other stops in Eli's radio career have ranged in diversity from playing rock'n'roll "oldies" on the legendary WMEX during its last years as a full-time music station in Boston in the mid-1980s, to playing folk music on the UMass Boston public radio station WUMB in the mid-2000's.

Eli joined the part-time staff at WBUR in July 1999, and was proud to be part of Boston's NPR News Station.