iFixit has completed its teardown of the second-generation Apple TV, and while most of the findings were identical to those seen in an earlier report, one specific detail has stood out. According to iFixit, the third-generation Apple TV sports a Broadcom 4330 chip that supports dual-band 2.4 GHz and 5 GHz 802.11 a/b/g/n connectivity. Coincidentally, this is the same chip found in the third-generation iPad, and is also responsible for its…