This afternoon, Thursday Night Live will return to Washington’s Central Park. Each week the Farmers Market begins at 5pm, guest performers take the stage at 6:30, and the Washington Municipal Band performs at 8.  Tonight “Say Uncle”, a band from Washington and Wayland, will perform in the city’s bandstand.  “Say Uncle” guitar and vocalist Jeffrey Morgan says the group is a family band that got started when he met the group’s other guitar player, and married his sister.  All three play in the band, as well as Morgan’s stepson.  “Say Uncle” performs tonight at 6:30 pm.