1. A search system, comprising: a database configured to maintain an index of programs, some of which are similar programs based on depictions of the programs; an indexing service configured to: identify keywords in a program review of a program, the program review including one or more depictions of the program; identify content identifiers in the program review of the program; and generate a program index to position the program into the index of programs such that the program is associated with the similar programs.