What do you do if there is a spot for a TV show that just came out, but there is already a spot and it appears that the member who created it doesn't log on anymore?

no, dont make a repeat.

you can add content to the spot..it belongs to the community, the creator isnt the owner. the only thing they can do which you cant is change the icon and banner.
i suggest you find a few icons and banners that would fit. if you have none try posting a forum asking other fans for help.
once you have some ideas make a pick so the fans can choose which one they like best. its always a good idea to link the full banner in a comment so people can look at it full size rather than just what shows up in the pick. also make sure to always add the option to keep the old one.(well i see that in your case there is nothing..i just mean in the usual case)
let other fans make additions and suggestions..if nothing is decided you can alway make a tie breaker pick with the most popular ones.limit the pick to a certain time say two weeks to give everyone a chance to vote. this is also a chance for the spot founder to say who they are.

once the fans have agreed and the pick is closed send a message to
PAPA link
or
DAVE link
adding the link to both the pick and the icon and banner that won and they will change it for you.
this is not a rule or anything..just the fanpopesque way of handling it. i know people have had the spot icon and banner changed withoot picks just by asking the f4 but i think that trolls will eat their families!