“Bud United presents: The Big Time” will air Saturday afternoons on ABC for seven weeks, starting Jan. 21, as part of a push by Anheuser-Busch InBev NV to build more buzz around its flagship Budweiser brand. The world’s largest brewer by sales said the show will feature amateurs competing in sports, such as baseball, soccer and stock-car racing, as well as other fields, including music and cooking.