Years of halting negotiations with cable companies haven’t gotten Apple much closer to its grand vision for television. But a newer strategy of talking directly to content providers seems more promising. Apple is negotiating with production studios and networks to provide content for a television set that would emphasize apps over cable TV, according to people familiar with those discussions. Among the companies that have talked to Apple are Disney’s ESPN, Time Warner’s HBO, and Viacom, which owns MTV Networks, Nickelodeon, and Comedy Central. It’s unclear how close these deals are to fruition. Some people cautioned that, with the TV industry in such flux, “everybody is talking with everybody.” Any deal with an internet TV service like the one envisioned by Apple is likely to be under similar terms as the networks have negotiated with traditional cable companies.