Hi. I've located the compatible WD AV expander for my TIVO Premiere. The TIVO site lists the model number as WDBABT0010HBK-NESN. I have located it elsewhere with the same model number - MINUS the "NESN" at the end of the number string. The product description lists it as compatible with TIVO Series 3 and Premiere. Does anyone know if this is the SAME unit, even though the "NESN" is missing at the end? Sorry if this is a dumb question. Thanks for help!