Comcast switches on 50,000 residential Wi-Fi hotspots in Houstonhttp://blog.seattlepi.com/techblog/2014/06/10/comcast-switches-on-50000-residential-wi-fi-hotspots-in-houston/#24139101=0 by seltzered_ • 12 years ago 2 0 12 years agoBLblog.seattlepi.com