Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Episode # | Season # | Title | Directed by | Written by | Original airdate | Production code # |
| --- | --- | --- | --- | --- | --- | --- |
| 96.0 | 501.0 | "Adios, Johnny Bravo" | Jerry London | Joanna Lee | September14,1973 | 98.0 |
| 97.0 | 502.0 | "Mail Order Hero" | Bruce Bilson | Martin Ragaway | September21,1973 | 96.0 |
| 98.0 | 503.0 | "Snow White and the Seven Bradys" | Bruce Bilson | Ben Starr | September28,1973 | 95.0 |
| 99.0 | 504.0 | "Never Too Young" | Richard Michaels | Larry Rhine & Al Schwartz | October5,1973 | 99.0 |
| 100.0 | 505.0 | "Peter and the Wolf" | Leslie H. Martinson | Tam Spiva | October12,1973 | 100.0 |
| 101.0 | 506.0 | "Getting Greg's Goat" | Robert Reed | Sam Locke & Milton Pascal | October19,1973 | 101.0 |
| 102.0 | 507.0 | "Marcia Gets Creamed" | Peter Baldwin | Bill Freedman & Ben Gershman | October26,1973 | 104.0 |
| 103.0 | 508.0 | "My Brother's Keeper" | Ross Bowman | Michael Morris | November2,1973 | 105.0 |
| 104.0 | 509.0 | "Quarterback Sneak" | Peter Baldwin | Bill Freedman & Ben Gershman | November9,1973 | 103.0 |
| 105.0 | 510.0 | "Try, Try Again" | George Tyne | Larry Rhine & Al Schwartz | November16,1973 | 106.0 |
| 106.0 | 511.0 | "The Cincinnati Kids" | Leslie H. Martinson | Larry Rhine & Al Schwartz | November23,1973 | 102.0 |
| 107.0 | 512.0 | "The Elopement" | Jerry London | Harry Winkler | December7,1973 | 97.0 |
| 108.0 | 513.0 | "Miss Popularity" | Jack Donohue | Martin Ragaway | December21,1973 | 109.0 |
| 109.0 | 514.0 | "Kelly's Kids" | Richard Michaels | Sherwood Schwartz | January4,1974 | 107.0 |
| 110.0 | 515.0 | "The Driver's Seat" | Jack Arnold | George Tibbles | January11,1974 | 108.0 |
| 111.0 | 516.0 | "Out of This World" | Peter Baldwin | Larry Rhine & Al Schwartz | January18,1974 | 110.0 |
| 112.0 | 517.0 | "Welcome Aboard" | Richard Michaels | Larry Rhine & Al Schwartz | January25,1974 | 112.0 |
| 113.0 | 518.0 | "Two Petes in a Pod" | Richard Michaels | Sam Locke & Milton Pascal | February8,1974 | 111.0 |
| 114.0 | 519.0 | "Top Secret" | Bernard Wiesen | Howard Ostroff | February15,1974 | 115.0 |
| 115.0 | 520.0 | "The Snooperstar" | Bruce Bilson | Harry Winkler | February22,1974 | 113.0 |
| 116.0 | 521.0 | "The Hustler" | Michael Kane | Bill Freedman & Ben Gershman | March1,1974 | 114.0 |
Question:
Name the airdate for the episode written by howard ostroff
Answer:
February15,1974