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:
Smriti Khanna
Table title:
Television
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Shows </th><th colspan=1 rowspan=1 > Role </th><th colspan=1 rowspan=1 > Channel </th></tr>
<tr> <td colspan=1 rowspan=1 > 2013-2014 </td><td class="highlighted"  colspan=1 rowspan=1 > It's Complicated </td><td class="highlighted"  colspan=1 rowspan=1 > Jo </td><td class="highlighted"  colspan=1 rowspan=1 > Channel V </td></tr>
<tr> <td colspan=1 rowspan=1 > 2014-2016 </td><td class="highlighted"  colspan=1 rowspan=1 > Meri Aashiqui Tum Se Hi </td><td class="highlighted"  colspan=1 rowspan=1 > Ritika Zaveri </td><td class="highlighted"  colspan=1 rowspan=1 > Colors TV </td></tr>
<tr> <td colspan=1 rowspan=2 > 2015 </td><td colspan=1 rowspan=1 > Nadaniyaan </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Big Magic </td></tr>
<tr> <td colspan=1 rowspan=1 > Yeh Hai Aashiqui </td><td colspan=1 rowspan=1 > Reeva </td><td colspan=1 rowspan=1 > UTV Bindass </td></tr>
<tr> <td colspan=1 rowspan=4 > 2016 </td><td colspan=1 rowspan=1 > C.I.D. </td><td colspan=1 rowspan=1 > Sheetal </td><td colspan=1 rowspan=1 > Sony TV </td></tr>
<tr> <td colspan=1 rowspan=1 > Box Cricket League 2 </td><td colspan=1 rowspan=1 > Contestant </td><td colspan=1 rowspan=1 > Colors TV </td></tr>
<tr> <td colspan=1 rowspan=1 > SuperCops vs Supervillains </td><td colspan=1 rowspan=1 > Nisha </td><td colspan=1 rowspan=1 > Life OK </td></tr>
<tr> <td colspan=1 rowspan=1 > Balika Vadhu </td><td colspan=1 rowspan=1 > Vandana Mittal </td><td colspan=1 rowspan=2 > Colors TV </td></tr>
<tr> <td colspan=1 rowspan=1 > 2016-2017 </td><td colspan=1 rowspan=1 > Kasam Tere Pyaar Ki </td><td colspan=1 rowspan=1 > Malaika Malhotra </td></tr>
<tr> <td colspan=1 rowspan=1 > 2017 </td><td colspan=1 rowspan=1 > Iss Pyaar Ko Kya Naam Doon 3 </td><td colspan=1 rowspan=1 > Sasha </td><td colspan=1 rowspan=1 > Star Plus </td></tr>
</table>
Question:
How often did Smriti Khanna appear on Colors TV?
Answer:
Smriti Khanna played 4 roles on the channel Colors TV between 2014 and 2017.