Peacock, a streaming service by Comcast-owned NBCUniversal, said on Thursday it will raise prices by $3 later this month and begin testing a new narrowed-down tier for users.The price for Peacock’s ad-supported premium plan will increase to $10.99 per month, while the premium plus plan will now be priced at $16.99 per month, starting July 23, according to a statement by the streaming service.Peacock will begin testing a “Select” tier, targeting TV lovers, featuring current seasons of shows on NBC and Bravo ...