WTLX (100.5 FM "100.5 FM ESPN") is a commercial radio station, licensed to Monona, Wisconsin and serving the Madison metropolitan area. The station is owned by Good Karma Broadcasting, LLC, and runs a sports radio format as a network affiliate of ESPN Radio, sharing most programming with Milwaukee based WKTI-FM identifying jointly on air as ESPN Wisconsin. Studios and offices were on North Pinckney Street in Madison for 5.5 years from mid-2016 to the end of 2021. Jason Wilde stated on December 21, 2021 during an episode of Wilde & Tausch that the show that day was the last show from that studio as the radio station was going to be moving to a new location. The transmitter is off Tower Road, using an antenna on the water tower at the Mendota Mental Health Institute in Madison.