DANCING WITH THE STARS - &#34;Episode 1706&#34; - Eight remaining couples hit the dance floor and face an exciting new challenge on &#34;Dancing with the Stars,&#34; MONDAY, OCTOBER 21 &#40;8:00-10:01 p.m., ET&#41;. Each couple competed in an individual dance style they have not yet done as well as take part in the first ever &#34;Switch-Up Challenge.&#34;  &#40;ABC&#47;Adam Taylor&#41; PETA MURGATROYD, BRANT DAUGHERTY <span class=meta>(ABC &#47; Adam Taylor)</span>
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