The big religious broadcaster Daystar Television has bought its second public TV station in recent months — WTBU in Indianapolis, sold by Butler University for $4 million, local TV station WRTV reported June 9. The university explained earlier why it was cashing in. Last summer, KERA in Dallas sold one of its two channels to Daystar for $20 million. Daystar is also suing an Orange County college to buy public TV station KOCE. The network says it owns and operates more than 30 stations.