10. A broadcast program retrieval method according to claim 8 , further comprising: configuring a keyword database in the data server, said keyword database including a plurality of keywords; and using said plurality of keywords to match said at least one content keyword received from the user server.
10. A broadcast program retrieval method according to claim 8 , further comprising: configuring a keyword database in the data server, said keyword database including a plurality of keywords; and using said plurality of keywords to match said at least one content keyword received from the user server. 11. A broadcast program retrieval method according to claim 10 , further comprising: processing and storing in the keyword database any changes made to said other information related to said plurality of broadcast programs.