TiVo may be falling under the superficial spell of techno-fashion with its Glo Remote, but competing gadgets know that beauty is only clamshell deep. Take, for example, the InVoca voice-activated universal remote, which supposedly recognizes up to four voices and 25 commands for your TV, VCR, DVD player and other devices. It also has a charging base--shouldn't all products have those by now?--and a hands-free surfing function (we're not sure exactly how that works). The InVoca's name reminds us of an Italian scooter, but we've already gotten over that. If it works as billed, we wouldn't care if it looked like a brown Zune.