user: Question: What year was there a production created by Adelphi?
Columns: ['Medium', 'Title', 'Date', 'Theatre, Studio, or Network', 'Role']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Film', 'The Round Up', '1941', 'Paramount', 'Janet Allen']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Theatre, Studio, or Network" = 'Adelphi';