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:
Richard Davies (actor)
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 > 1962–1965 </td><td colspan=1 rowspan=1 > Z-Cars </td><td colspan=1 rowspan=1 > Jim Sloan </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1968 </td><td colspan=1 rowspan=1 > Softly, Softly </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1962 </td><td colspan=1 rowspan=1 > Z-Cars </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1968–1972 </td><td colspan=1 rowspan=1 > Please Sir! </td><td colspan=1 rowspan=1 > Mr. Price </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1970 </td><td colspan=1 rowspan=1 > Two in Clover </td><td colspan=1 rowspan=1 > David Evans </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1974–1975 </td><td class="highlighted"  colspan=1 rowspan=1 > Coronation Street </td><td class="highlighted"  colspan=1 rowspan=1 > Idris Hopkins </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1974–1977 </td><td colspan=1 rowspan=1 > Oh No, It's Selwyn Froggitt! </td><td colspan=1 rowspan=1 > Clive </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1979 </td><td colspan=1 rowspan=1 > Fawlty Towers </td><td colspan=1 rowspan=1 > Mr. White </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1980 </td><td colspan=1 rowspan=1 > Yes, Minister </td><td colspan=1 rowspan=1 > Joe Morgan </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > Whoops Apocalypse </td><td colspan=1 rowspan=1 > Chancellor of the Exchequer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1984 </td><td colspan=1 rowspan=1 > Bottle Boys </td><td colspan=1 rowspan=1 > Stan Evans </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1985 </td><td colspan=1 rowspan=1 > Big Deal </td><td colspan=1 rowspan=1 > Dai Phillips </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 1987 </td><td class="highlighted"  colspan=1 rowspan=1 > Doctor Who </td><td class="highlighted"  colspan=1 rowspan=1 > Burton </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1988 </td><td colspan=1 rowspan=1 > Wyatt's Watchdogs </td><td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > One Foot in the Grave </td><td colspan=1 rowspan=1 > Billy Whitney </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > 2point4 Children </td><td colspan=1 rowspan=1 > Gareth </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > 1993 </td><td colspan=1 rowspan=1 > The Bill </td><td colspan=1 rowspan=1 > Caretaker </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
Which role did Richard Davies play between 1974 and 1975, and the year 1987?
Answer:
Richard Davies played as Idris Hopkins in Coronation Street between 1974 and 1975 and appeared as Burton in the 1987 Doctor Who.