Media congloms continue to eye Telemundo as the Spanish-lingo broadcaster shops itself to the likes of NBC, Viacom and now AOL Time Warner.With the Spanish-language market sizzling, talks have been heating up this summer, and insiders expect a deal within the next month. Smaller groups like Hispanic Broadcasting are also in the game. Privately-held Telemundo, which is owned by Sony, Liberty Media and several investment firms, is looking to take in north of $3 billion. “How much more than $3 billion remains to be seen. No one’s come up with it yet,” said an insider at one of the net’s owners, but talks are “serious.” If no one ponies up the cash, Telemundo might be ripe for an initial public offering or other type of cash infusion, he and others said.