(Telecompaper) Comcast added new TV subscribers for a second consecutive quarter in Q1. The US' largest cable operator signed up 24,000 new video customers in the three months, for a total 22.601 million at the end of March. Broadband also continued its strong growth, adding 383,000 customers to reach 21.068 million. Telephony users were up by 142,000 in Q1 to 10.865 million. Comcast increased the percentage of customers taking all three services to 36 percent, from 33 percent a year earlier. The Cable division grew quarterly revenues 5.3 percent year-on-year to USD 10.8 billion, driven by rate increases, customers taking higher-tier plans and 24 percent higher business service revenues. Operating cash flow grew a slower 4.3 percent to USD 4.4 billion, due to increased programming costs. Comcast's total net profit was up 31.5 percent from a year earlier to USD 0.71 per share, helped by gains on the sale of an investment and a favorable resolution of a prior acquisition contingency. Capital expenditure increased 6.4 percent to USD 1.4 billion, mainly due to increased spending on customer premise equipment related to the deployment of the X1 platform and wireless gateways. Cable capex was 10.6 percent of revenue. Free cash flow decreased 10.0 percent to USD 2.8 billion after higher spending for the Olympics and film and TV production.