Zenith Z42LC6DF / Z47LC6DF LCD HDTVs hit the FCC

Here's an interesting one. Zenith's 42-inch Z42LC6DF / 47-inch Z47LC6DF LCD HDTVs are already on sale at outlets like Target, yet they're just now getting around to surfacing at the FCC. We're not sure if this is just some weird way of keeping a veil on two similar sets slated to hit shortly with built-in WHDI (pretty please?), but if we're being honest with ourselves, we'd say there's probably nothing here to get excited over.