DENVER, Colorado--(BUSINESS WIRE)--Liberty Global plc ("Liberty Global" or the "Company") (NASDAQ: LBTYA, LBTYB and LBTYK), today announces financial and operating results1 for the three months ended March 31, 2015 ("Q1"). Operating and financial highlights: Continued focus on high-value bundles offering superior broadband speeds, next-generation TV functionality, enhanced content and mobility Over 150,000 broadband additions and record quarter for Horizon TV growth in Q1 Customer ARPU2 increas