Previewing Iowa State Posted Mar 22, 2014 Standing between North Carolina and the Sweet 16 is No. 3-seed Iowa State and its high-powered offense. Tip-off on Sunday in San Antonio is set for 5:15 p.m. ET and will be televised by CBS. Iowa State enters Sunday’s contest with a 27-7 (11-7 Big 12) record. The Cyclones went 12-6 against teams in the NCAA Tournament. (Inside Carolina)