Craig Semon sits down with Gary Sohmers — who served as an appraisal expert of pop culture, collectibles and toys for 13 years on “The Antique Roadshow” on PBS — talks about pop cultural memorabilia (including the Monkees, "Captain Marvel," "Beverly Hills 90210" and "Black Panther"), as well as the Northeast Comic Con and Collectibles Extravaganza being held Friday through Sunday, March 15-17, at the Boxboro Regency Hotel, 242 Adams Place, Boxboro. For more information, go to NEComicCons.com.