BBC staff at Salford Quays are on the picket lines along with thousands of employees across the country.
Some programmes will be disrupted during the 24-hour strike over job cuts.
Around 2,000 posts are set to go under cost-saving plans.
More top news
NHS staff to be offered Zumba classes and counselling to keep them fit and in work, NHS England's chief executive is to announce.
Manchester United goalie De Gea 'must play' to get picked for Spain - says the Spanish manager Vincente Del Bosque.
100,000 renters in the North West could be victim to 'rogue' landlords according to new research.