Rockport High School will be among 16 high schools represented in the fourth season of WGBH’s “High School Quiz Show,” with a first-round match against Sharon High School scheduled for next Sunday at the WGBH studios in Boston. The episode is scheduled to air on March 17 at 6:30 p.m. on WGBH Channel 2. Last year, Rockport lost a close semifinal match to eventual champion Hamilton-Wenham. The team includes Corey Silver, Evan Razdan, Quenton Hurst, and Alexandra Legendre, with Nate Allen and Oliver Herman as alternates. The teacher-coaches are Neil Dineen and Martha Cooney. A team including those students and also Sophie Palmer, Nelson Pike, Emily Dailey, Kelly Biondo, and Ekin Bakkal competes in local and national college bowl competitions.