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:
Ronnie Barker
Table title:
Radio
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Show </th><th colspan=1 rowspan=1 > Role </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > 1956 </td><td colspan=1 rowspan=1 > Floggit's </td><td colspan=1 rowspan=1 > Lord Russett </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1959-77 </td><td colspan=1 rowspan=1 > The Navy Lark </td><td colspan=1 rowspan=1 > Voiced 40 characters including Able Seaman (Fatso) Johnson, Lt.Cmdr (Archibald) Stanton, Lt. Queeg and a dimwitted member of Naval Intelligence and was in every episode up to November 1967 after which he left to concentrate on television </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1963 </td><td class="highlighted"  colspan=1 rowspan=1 > The TV Lark </td><td class="highlighted"  colspan=1 rowspan=1 > Fatso </td><td colspan=1 rowspan=1 > One Series </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1963 </td><td class="highlighted"  colspan=1 rowspan=1 > Crowther's Crowd </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > One Episode </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Variety Playhouse </td><td class="highlighted"  colspan=1 rowspan=1 > Various Characters </td><td colspan=1 rowspan=1 > Two Episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 1971-1972 </td><td colspan=1 rowspan=1 > Lines from My Grandfather's Forehead </td><td colspan=1 rowspan=1 > Various Characters </td><td colspan=1 rowspan=1 > One Series and Christmas Special </td></tr>
<tr> <td colspan=1 rowspan=1 > 1973 </td><td colspan=1 rowspan=1 > Frank Muir Goes Into </td><td colspan=1 rowspan=1 > Himself </td><td colspan=1 rowspan=1 > One Episode </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Funny That Way </td><td colspan=1 rowspan=1 > Himself </td><td colspan=1 rowspan=1 > One Episode </td></tr>
<tr> <td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > The Comediennes </td><td colspan=1 rowspan=1 > Himself </td><td colspan=1 rowspan=1 > Betty Marsden </td></tr>
<tr> <td colspan=1 rowspan=1 > 1997 </td><td colspan=1 rowspan=1 > The Monkhouse Archive </td><td colspan=1 rowspan=1 > Himself </td><td colspan=1 rowspan=1 > One Episode </td></tr>
<tr> <td colspan=1 rowspan=1 > 2000 </td><td colspan=1 rowspan=1 > The Hislop Vote </td><td colspan=1 rowspan=1 > Himself </td><td colspan=1 rowspan=1 > One Episode </td></tr>
<tr> <td colspan=1 rowspan=1 > 2004 </td><td colspan=1 rowspan=1 > Kington's Anatomy of Comedy </td><td colspan=1 rowspan=1 > Himself </td><td colspan=1 rowspan=1 > One Episode </td></tr>
</table>
Question:
What was Ronnie Barker's acting productivity like in 1963?
Answer:
Ronnie Barker also featured in the shows, The TV Lark in which his character was Fatso and in Crowther's Crowd in 1963 and had roles on Variety Playhouse.