Sarah Jane Adventures | SCIFI.COM We watched the first episode of the new spin-off from the Doctor Who empire, and have already got it set up on TiVo for a season pass. It was like watching an old episode, a classic episode, of Doctor Who, with “The Doctor” gone off somewhere, leaving Sarah Jane in charge. It’s obviously aimed at a younger audience than either Torchwood or the “New Who,” but it’s still well worth watching. This was a 90 minute episode, and it started out with a new family moving into the neighborhood. The “fresh eyes” character in classic…