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:
William Mervyn
Table title:
Theatre
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Title </th><th colspan=1 rowspan=1 > Theatre </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1946 </td><td class="highlighted"  colspan=1 rowspan=1 > The Guinea Pig </td><td class="highlighted"  colspan=1 rowspan=1 > Criterion Theatre </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1947-48 </td><td colspan=1 rowspan=1 > The Blind Goddess </td><td colspan=1 rowspan=1 > Apollo Theatre, London </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1948 </td><td class="highlighted"  colspan=1 rowspan=1 > Lend Me Robin </td><td class="highlighted"  colspan=1 rowspan=1 > Embassy Theatre </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1952 </td><td class="highlighted"  colspan=1 rowspan=1 > The Mortimer Touch </td><td colspan=1 rowspan=1 > Duke of York's Theatre </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1952-53 </td><td colspan=1 rowspan=1 > Pagan in the Parlour </td><td colspan=1 rowspan=1 > Theatre Royal, Bath </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1953 </td><td class="highlighted"  colspan=1 rowspan=1 > A Woman of No Importance </td><td class="highlighted"  colspan=1 rowspan=1 > Savoy Theatre </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1954 </td><td class="highlighted"  colspan=1 rowspan=1 > Charley's Aunt </td><td colspan=1 rowspan=1 > New Theatre and Strand Theatre </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1954-55 </td><td colspan=1 rowspan=1 > Witness for the Prosecution </td><td colspan=1 rowspan=1 > Bristol Hippodrome </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1955 </td><td colspan=1 rowspan=1 > Mrs Willie </td><td colspan=1 rowspan=1 > Globe Theatre, London </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1956 </td><td colspan=1 rowspan=1 > The Rivals </td><td colspan=1 rowspan=1 > Saville Theatre </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1972 </td><td colspan=1 rowspan=1 > The Doctor's Dilemma </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
When and where did William Mervyn perform his first play, and where he performed Lend Me Robin (1948) and A Woman of No Importance (1953)?
Answer:
William Mervyn made his debut in The Guinea Pig at the Criterion Theatre in 1946, and performed in plays such as Lend Me Robin at the Embassy Theatre, A Woman of No Importance at the Savoy Theatre in 1953.