1. A method for combining video images in an interactive video system, the method comprising: receiving a first video signal associated with prerecorded video content having multiple frames; receiving metadata associated with the first video signal, the metadata being indicative of selected ones of the multiple frames in which an original character of the prerecorded video content has been removed prior to said receiving the first video signal; receiving a second video signal comprising second video content having a background image and a video image of a participant playing a role of the original character in front of the background image; filtering the second video signal to remove the background image to create a modified second video signal with the video image of the participant; and combining the first video signal and the modified second video signal to create combined video content, said combining comprising selectively inserting the video image of the participant in the selected ones of the multiple frames such that the participant appears in place of the original character by overlaying the modified second video signal on the first video signal such that placement of the video image of the participant is unrestricted within each of the selected ones of the multiple frames.