NCAA Men’s Basketball “Sweet Sixteen” schedule:  Thursday, March 26:  Times are Eastern - (2) Purdue vs. (11) Texas, 7:10 p.m. | CBS; (4) Nebraska vs. (9) Iowa, 7:30 p.m. | TBS/truTV; (1) Arizona vs. (4) Arkansas, 9:45 p.m. | CBS; (2) Houston vs. (3) Illinois, 10:05 p.m. | TBS/truTV.  Friday, March 27: (1) Duke vs. (5) St. John's, 7:10 p.m. | CBS; (1) Michigan vs. (4) Alabama, 7:35 p.m. | TBS/truTV; (2) UConn vs. (3) Michigan State, 9:45 p.m. | CBS; (2) Iowa State vs. (6) Tennessee, 10:10 p.m. | TBS/truTV.