Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
List of Arthur episodes
Table title:
Season 21 (2017–18)
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > No. overall </th><th colspan=1 rowspan=1 > No. in season </th><th colspan=1 rowspan=1 > Title </th><th colspan=1 rowspan=1 > Written by </th><th colspan=1 rowspan=1 > Storyboard by </th><th colspan=1 rowspan=1 > Original air date </th></tr>
<tr> <th colspan=1 rowspan=1 > 233 </th><td colspan=1 rowspan=1 > 1 </td><td colspan=1 rowspan=1 > "Binky's 'A' Game / Brain and the Time Capsule" </td><td colspan=1 rowspan=1 > Peter K. Hirsch Cliff Ruby & Elana Lesser </td><td colspan=1 rowspan=1 > Michel Carbonneau Jean Banville </td><td colspan=1 rowspan=1 > October 24, 2017 </td></tr>
<tr> <th colspan=1 rowspan=1 > 234 </th><td colspan=1 rowspan=1 > 2 </td><td colspan=1 rowspan=1 > "The Master Builders" </td><td colspan=1 rowspan=1 > Peter K. Hirsch </td><td colspan=1 rowspan=1 > Gerry Capelle and Michel Carbonneau </td><td colspan=1 rowspan=1 > October 24, 2017 </td></tr>
<tr> <th colspan=1 rowspan=1 > 235 </th><td colspan=1 rowspan=1 > 3 </td><td colspan=1 rowspan=1 > "Francine & the Soccer Spy / Sue Ellen & the Last Page" </td><td colspan=1 rowspan=1 > Vanessa Wiegel Belinda Arredondo </td><td colspan=1 rowspan=1 > Bernie Denk and Allan Jeffery Dev Ramsaran and Allan Jeffery </td><td colspan=1 rowspan=1 > October 26, 2017 </td></tr>
<tr> <th colspan=1 rowspan=1 > 236 </th><td colspan=1 rowspan=1 > 4 </td><td colspan=1 rowspan=1 > "Muffy Misses Out / Arthur Takes a Stand" </td><td colspan=1 rowspan=1 > Matt Hoverman Peter K. Hirsch </td><td colspan=1 rowspan=1 > Allan Jeffery Cilbur Rocha </td><td colspan=1 rowspan=1 > February 12, 2018 </td></tr>
<tr> <th colspan=1 rowspan=1 > 237 </th><td colspan=1 rowspan=1 > 5 </td><td colspan=1 rowspan=1 > "Slink's Special Talent / Take a Hike, Molly" </td><td colspan=1 rowspan=1 > Peter K. Hirsch Cheri Magid </td><td colspan=1 rowspan=1 > Cilbur Rocha Nick Vallinakis </td><td colspan=1 rowspan=1 > February 13, 2018 </td></tr>
<tr> <th colspan=1 rowspan=1 > 238 </th><td colspan=1 rowspan=1 > 6 </td><td colspan=1 rowspan=1 > "The Lost Dinosaur / The Princess Problem" </td><td colspan=1 rowspan=1 > Jessica Carleton Matt Hoverman </td><td colspan=1 rowspan=1 > Cilbur Rocha Jean Banville, James Clayton Bourne, and Daniel Miodini </td><td colspan=1 rowspan=1 > February 14, 2018 </td></tr>
<tr> <th class="highlighted"  colspan=1 rowspan=1 > 239 </th><td colspan=1 rowspan=1 > 7 </td><td colspan=1 rowspan=1 > "Invasion of the Soccer Fans / Pal and the Big Itch" </td><td colspan=1 rowspan=1 > Lindsay Thompson Peter K. Hirsch </td><td colspan=1 rowspan=1 > Denis Banville, Michel Carbonneau, Elie Klimos, and Nick Vallinakis Gerry Capelle </td><td class="highlighted"  colspan=1 rowspan=1 > February 15, 2018 </td></tr>
</table>
Question:
How many episodes of Arthur were released as of February 15, 2018?
Answer:
As of February 15, 2018, Arthur has aired a total of 239 episodes.