to CBC Music, Saturday night programming features various music programs from CBC Music. In contrast, the Sunday night programming has the network's various spoken-word narrative programs concentrated from 7 p.m. to 12 a.m. (Eastern). Some CBC Radio One programs, such as As It Happens, air in the United States on some stations associated with Public Radio International. Definitely Not the Opera, Quirks & Quarks, The Vinyl Cafe, and Q are heard on some public stations in the northern United States. Some CBC-SRC programs were relayed on Radio Canada International for listeners abroad and others, such as the 2010 summer program Promised Land, have aired on Sirius Satellite Radio 169. CBC Radio One stations Only stations with a primary production centre, producing at least one local program, are listed below. Most of these stations are licensed as separate broadcast undertakings. Stations not considered primary production centres may have local content which is limited to local news updates. Each station also has a significant number of rebroadcasters in smaller communities within its service area; those are listed in each primary station's article. † Station has a "nested" FM rebroadcaster in home market Shortwave relays of Radio One Several shortwave radio relays of CBC Radio One once existed to provide coverage to remote areas that could not otherwise receive radio broadcasts. The only such operation still licensed is CKZN, relaying CFGB-FM from Happy Valley-Goose Bay, Newfoundland and Labrador with a 1 kW ERP signal on a fixed frequency of 6.16 MHz. Former shortwave relays include CKCX, providing a relay of CBC North programming, and CKZU, relaying CBU from Vancouver. CKCX and CKZU ceased operations in 2012 and 2017, respectively. Programming Most schedules include hourly news readings that run from 6–12 minutes on the top of the hour except for major programming like the 6:00 p.m. news show and Cross Country Checkup. Some mid-day programs include only brief 90-second "information updates". On statutory holidays, local programming is replaced by special provincial programming or regional programs are broadcast provincewide on a rotating basis. In the summer months of July and August, some programming is temporarily shortened and/or replaced by special summer series. On Christmas Day, the majority of the day's programming is replaced with predominately holiday music showcases. Stations in the Canadian territories air a significantly different schedule with expanded local programming that includes a number of programs in local Indigenous languages. They air most