We The Undersigned feel that the writer for that episode did not realize that something like that ALREADY happened with a past companion and the last few episodes including the Christmas special "The Widow and The Wardrobe" needs to re-shot, fixed, and re-aired at once. All DVD series sets will be recalled from the market. I'm doing this for Astrid of Berkeley, CA. This is for the attention of the writing staff for Doctor Who at the British Broadcasting Corporation.