At intervals (5,2,5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">at intervals</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for every so often that I've seen before include "At intervals" , "Occasionally" .)
(Other definitions for episodic that I've seen before include "Occurring irregularly or in instalments" , "taken one piece at a time" , "Discursive" , "piecemeal" , "Intermittent" .)