We don't have a host and it's hard to vote yourself off the island when you're the only one on it. (Comparing movie Castaway with TV show Survivor)
trivia
Returned to Skyline High School, his old school in Oakland, CA, to dedicate a renovated theater named for Rawley T. Farnsworth, the retired drama teacher he thanked in his "Philadelphia" Oscar speech. Oakland Tribune reports Hanks donated about 1/4 of the $465,000 cost of the project. Then he led audience of some 1000 people in chorus of "There's No Business Like Show Business". (3 June 2002)