During Thursday morning’s opening keynote at the Consumer Electronics Show, Sony Corp.’s Chairman and CEO Howard Stringer announced that Sony Pictures’ syndicated game shows “Jeopardy!” and “Wheel of Fortune” will be available in high-definition starting this fall. They will be the first game shows available in the crisp, rich, HD format. The time is right, Mr. Stringer said, since the sale of HD sets will eclipse the sale of standard-definition sets for the first time this year, according to the Consumer Electronics Association. “With the proliferation of HD, programming is ramping up,” Mr. Stringer said.