Netflix just released its first quarter earnings. Earnings per share were $1.11, up 88 percent (3 cents above the consensus estimate of $1.08). Revenues came in at $719 million. And Netflix added 3.3 million subscribers in the quarter to end at 23.6 million, which is below the 3.7 million analayts were hoping for but still double the growth from a year ago. Netflix saw a rise in domestic operating margins to 16 percent, from 14.9 percent in the fourth quarter, largely due to an increase in streaming-only subscribers and price increases on hybrid subscriptions. Margins should fall back to around 14 percent as streaming and marketing costs continue to rise (offset by declines in DVD shipping) Updating . .