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:
Judith McGrath
Table title:
Filmography
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 > Role </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > 1969 </td><td colspan=1 rowspan=1 > Age of Consent </td><td colspan=1 rowspan=1 > Brisbane Bird: Grace </td><td colspan=1 rowspan=1 > Feature film </td></tr>
<tr> <td colspan=1 rowspan=1 > 1977 </td><td colspan=1 rowspan=1 > Young Ramsay </td><td colspan=1 rowspan=1 > Rosemary Billings </td><td colspan=1 rowspan=1 > Season 1, Episode 8 – "Lame Duck" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1977 </td><td colspan=1 rowspan=1 > Bluey </td><td colspan=1 rowspan=1 > Mrs Thompson </td><td colspan=1 rowspan=1 > Season 1, Episode 22 – "The Fat Cat" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1978 </td><td colspan=1 rowspan=1 > Cop Shop </td><td colspan=1 rowspan=1 > Mrs Bond </td><td colspan=1 rowspan=1 > Season 1, Episode 23 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1979 </td><td colspan=1 rowspan=3 > Skyways </td><td colspan=1 rowspan=1 > Mrs Mason </td><td colspan=1 rowspan=1 > Season 1, Episode 15 – "Who Killed Cock Robyn?" Season 1, Episode 16 – "Mercy Dash" </td></tr>
<tr> <td colspan=1 rowspan=1 > Unknown </td><td colspan=1 rowspan=1 > Dr Mendleshon </td><td colspan=1 rowspan=1 > Episode: "The Return of Bessie Langhurst: Part 1 (unknown season) Episode: "The Return of Bessie Langhurst: Part 2" (unknown season) </td></tr>
<tr> <td colspan=1 rowspan=1 > Unknown </td><td colspan=1 rowspan=1 > Zoe Lawrence </td><td colspan=1 rowspan=1 > Episode: "Up the Down Staircase" (unknown season) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1980 </td><td colspan=1 rowspan=1 > Young Ramsay </td><td colspan=1 rowspan=1 > Ethel Dean </td><td colspan=1 rowspan=1 > Season 2, Episode 5 – "Gift Horse" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1984 </td><td colspan=1 rowspan=1 > Special Squad </td><td colspan=1 rowspan=1 > Unknown role </td><td colspan=1 rowspan=1 > Season 1, Episode 26 – "Farewell to Comerade" </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1979–84 </td><td class="highlighted"  colspan=1 rowspan=1 > Prisoner </td><td class="highlighted"  colspan=1 rowspan=1 > Colleen Powell </td><td colspan=1 rowspan=1 > Seasons 1–6 (263 episodes) Recurring role (seasons 1 & 2) / Main role (seasons 3–6) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > Neighbours </td><td colspan=1 rowspan=1 > Margaret Hayward </td><td colspan=1 rowspan=1 > Season 1 (2 episodes) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=1 > Sword of Honour </td><td colspan=1 rowspan=1 > Dietician </td><td colspan=1 rowspan=1 > Miniseries – Episode 4 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=2 > The Flying Doctors </td><td colspan=1 rowspan=1 > Cynthia Cumberland-Brown </td><td colspan=1 rowspan=1 > Season 1, Episode 18 – "Eye of the Beholder" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > Caroline Longley </td><td colspan=1 rowspan=1 > Season 3, Episode 22 – "One Final Request" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1989 </td><td colspan=1 rowspan=1 > Round the Twist </td><td colspan=1 rowspan=1 > Matron Gribble </td><td colspan=1 rowspan=1 > Season 1 (9 episodes) </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1992–93 </td><td class="highlighted"  colspan=1 rowspan=1 > A Country Practice </td><td class="highlighted"  colspan=1 rowspan=1 > Bernice Hudson </td><td colspan=1 rowspan=1 > Seasons 12 & 13 (149 episodes) </td></tr>
<tr> <td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > Police Rescue </td><td colspan=1 rowspan=1 > Hazel </td><td colspan=1 rowspan=1 > Season 4, Episode 3 – "Wrong Side of the Road" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1996 </td><td colspan=1 rowspan=1 > Naked: Stories of Men </td><td colspan=1 rowspan=1 > Margaret </td><td colspan=1 rowspan=1 > Season 1, Episode 3 – "Blind-Side Breakaway" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2005 </td><td colspan=1 rowspan=1 > Fink! </td><td colspan=1 rowspan=1 > Centrelink Woman </td><td colspan=1 rowspan=1 > Feature film </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1998–2009 </td><td class="highlighted"  colspan=1 rowspan=1 > All Saints </td><td class="highlighted"  colspan=1 rowspan=1 > Yvonne 'Von' Ryan </td><td class="highlighted"  colspan=1 rowspan=1 > Seasons 1–12 (493 episodes) Nominated: Logie Award of Most Outstanding Actress in a Series </td></tr>
<tr> <td colspan=1 rowspan=1 > 2010 </td><td colspan=1 rowspan=1 > Scone Wars </td><td colspan=1 rowspan=1 > Mavis Hepstead </td><td colspan=1 rowspan=1 > Short film </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011–12 </td><td colspan=1 rowspan=1 > Winners & Losers </td><td colspan=1 rowspan=1 > Maria Crawley </td><td colspan=1 rowspan=1 > Season 1, Episode 9 – "One Door Opens" Season 1, Episode 14 – "Two Point Oh" Season 2, Episode 21 – "Perfect Match" </td></tr>
</table>
Question:
What television roles is Judith McGrath best known for?
Answer:
Judith McGrath was known for her television roles as Colleen Powell in Prisoner (1979–84), Bernice Hudson in A Country Practice (1992–93) and for her Logie Award nominated role as Von Ryan in All Saints (1998–2009).