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:
Nana Visitor
Table title:
Television
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 > 1978–1979 </td><td colspan=1 rowspan=1 > Ryan's Hope </td><td colspan=1 rowspan=1 > Nancy Feldman </td><td colspan=1 rowspan=1 > Unknown episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > One Life to Live </td><td colspan=1 rowspan=1 > Georgina Whitman </td><td colspan=1 rowspan=1 > Unknown episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > Hunter </td><td colspan=1 rowspan=1 > Amy Laurton </td><td colspan=1 rowspan=1 > Episode: "The Biggest Man In Town" </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1985 </td><td class="highlighted"  colspan=1 rowspan=1 > MacGyver </td><td class="highlighted"  colspan=1 rowspan=1 > Laura Farren </td><td class="highlighted"  colspan=1 rowspan=1 > Episode: "Hellfire" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=1 > Knight Rider </td><td colspan=1 rowspan=1 > Sandra Rusk </td><td colspan=1 rowspan=1 > Episode: "Hills of Fire" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=1 > Highway to Heaven </td><td colspan=1 rowspan=1 > Margaret Swann </td><td colspan=1 rowspan=1 > Two episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > MacGyver </td><td class="highlighted"  colspan=1 rowspan=1 > Carol Varnay </td><td class="highlighted"  colspan=1 rowspan=1 > Episode: "D.O.A.: MacGyver" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > Matlock </td><td colspan=1 rowspan=1 > Vanessa Douglas </td><td colspan=1 rowspan=1 > Episode: "The Best Friend" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > The Colbys </td><td colspan=1 rowspan=1 > Georgina Sinclair </td><td colspan=1 rowspan=1 > Four episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > Night Court </td><td colspan=1 rowspan=1 > Ms. Sanders </td><td colspan=1 rowspan=1 > Episode: "Educating Rhoda" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > In the Heat of the Night </td><td colspan=1 rowspan=1 > Evie </td><td colspan=1 rowspan=1 > Episode: "Fate" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1989 </td><td colspan=1 rowspan=1 > Matlock </td><td colspan=1 rowspan=1 > Erin Whitley / Shannon Blackwell </td><td colspan=1 rowspan=1 > Episode: "The Other Woman" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1989 </td><td colspan=1 rowspan=1 > Doogie Howser, M.D. </td><td colspan=1 rowspan=1 > Charmagne </td><td colspan=1 rowspan=1 > Episode: "The Short Goodbye" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1990 </td><td colspan=1 rowspan=1 > Working Girl </td><td colspan=1 rowspan=1 > Bryn Newhouse </td><td colspan=1 rowspan=1 > Unknown episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 1990 </td><td colspan=1 rowspan=1 > Murder, She Wrote </td><td colspan=1 rowspan=1 > Marcia McPhee </td><td colspan=1 rowspan=1 > Episode: "See You In Court, Baby" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1993 </td><td colspan=1 rowspan=1 > Matlock </td><td colspan=1 rowspan=1 > Dr. Clara Farmington </td><td colspan=1 rowspan=1 > Episode: "The Divorce" </td></tr>
<tr> <td colspan=1 rowspan=1 > 1993–1999 </td><td colspan=1 rowspan=1 > Star Trek: Deep Space Nine </td><td colspan=1 rowspan=1 > Kira Nerys </td><td colspan=1 rowspan=1 > OFTA Television Award for Best Actress in a Syndicated Series Unknown episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 1998 </td><td colspan=1 rowspan=1 > The Outer Limits </td><td colspan=1 rowspan=1 > Cecilia Fairman </td><td colspan=1 rowspan=1 > Episode: "In Our Own Image" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2001 </td><td colspan=1 rowspan=1 > Dark Angel </td><td colspan=1 rowspan=1 > Elizabeth Renfro </td><td colspan=1 rowspan=1 > Six episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 2003 </td><td colspan=1 rowspan=1 > Frasier </td><td colspan=1 rowspan=1 > Sharon </td><td colspan=1 rowspan=1 > Episode: "Daphne Does Dinner" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2004 </td><td colspan=1 rowspan=1 > According to Jim </td><td colspan=1 rowspan=1 > Veronica </td><td colspan=1 rowspan=1 > Episode: "Who's the Boss?" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2005–2008 </td><td colspan=1 rowspan=1 > Wildfire </td><td colspan=1 rowspan=1 > Jean Ritter </td><td colspan=1 rowspan=1 > Unknown episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 2008 </td><td colspan=1 rowspan=1 > Battlestar Galactica </td><td colspan=1 rowspan=1 > Emily Kowalski </td><td colspan=1 rowspan=1 > Episode: "Faith" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2009–2014 </td><td colspan=1 rowspan=1 > Family Guy </td><td colspan=1 rowspan=1 > Rita/Brenda Quagmire/Nancy Pelosi/Justin's Mom/Kate's Mom (voices) </td><td colspan=1 rowspan=1 > 12 episodes </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 > Torchwood: Miracle Day </td><td colspan=1 rowspan=1 > Olivia Colosanto </td><td colspan=1 rowspan=1 > Episodes: "Immortal Sins", "End of the Road" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2011 </td><td colspan=1 rowspan=1 > Grimm </td><td colspan=1 rowspan=1 > Melissa Wincroft </td><td colspan=1 rowspan=1 > Episode: "Beeware" </td></tr>
<tr> <td colspan=1 rowspan=1 > 2017 </td><td colspan=1 rowspan=1 > Dynasty </td><td colspan=1 rowspan=1 > Diana Davis </td><td colspan=1 rowspan=1 > Episode: "Company Slut" </td></tr>
</table>
Question:
In what episodes of MacGyver did Visitor appear?
Answer:
Visitor appeared as Laura Farren in the episode "Hellfire" of MacGyver in 1985 and as Carol Varnay in the episode "DOA: MacGyver".