filling in gaps. Compared to other formats, interactive "talkback" sports radio poses difficulties for Internet radio, since as a live format it is difficult to automate; most prominent sports leagues also place their radio broadcasts behind a paywall or provide their broadcasts directly to the consumer, depriving standalone Internet stations of potential programming. Pre-recorded sports talk programs (usually interview-centered) can be podcasted with relative ease, and sports teams have also launched their own online digital networks with sports talk centered around their own properties. As with most other radio formats, sports radio uses dayparting. ESPN Radio, for instance, insisted that its affiliates carry Mike and Mike in the Morning during morning drive time to provide as much national clearance as possible; in contrast, it carries less prominent programming in the afternoon drive to accommodate local sports talk, as well as in the evening (for its first two decades, rolling score updates aired under the banner of GameNight) to allow stations to break away for local sporting events. Somewhat unusually for radio, the late-night and overnight hosts have more prominence on a sports talk network, due to a near-complete lack of local preemption; Sports Byline USA, for instance, operates exclusively Sports radio stations typically depend on drawing an audience that fits advertiser-friendly key demographics, particularly young men with the disposable income to invest in sports fandom, since the format does not have the broad appeal to reach a critical mass in the general public. Prominent sports radio stations typically get their greatest listenership from live play-by-play of local major professional sports league or college sports franchises; less prominent stations (especially on the AM dial) may not have this option because of poorer (or for daytime-only stations, non-existent) nighttime signals and smaller budgets for rights fees. In the United States, a variant of the sports radio format focusing on sports betting emerged in 2019 (following the 2018 repeal of the Professional and Amateur Sports Protection Act of 1992), which carry talk programs conducted from the perspective of the activity. In August 2019, SportsMap (then SB Nation Radio) and Vegas Stats & Information Network (VSiN) launched the BetR Network with affiliates in Las Vegas and Atlantic City at launch, while Philadelphia's WDAS adopted a betting-centric format later in the month. Broadcaster Audacy began to deploy its BetQL Network to more of its stations in June 2021 (using the on-air brand The Bet), alongside