HAPPENIN’ OTSEGO for SATURDAY, DEC. 30 Classic Rock Concert CONCERT – 6:30 p.m. Tom Golden presents a selection of classics ranging from Frank Sinatra, Tony Bennet, Nat King Cole, and Elvis Presley. The Empire House & Restaurant, 136 Marion Ave., Gilberstville. Call 607-783-2859 or visit www.empirehousefinedining.com/ VIGIL – 5 p.m. The Feast of the Holy Family. Saint Mary’s Catholic Church, 39 Walnut St., Oneonta. Call 607-432-3920 or visit www.stmarysoneonta.org…