[evo] TV @EVAL not exploding another TV content

hi, i am tryung to set the @EVAL in Template Variable. The point is that i need to use content of another TV and explode this to count some.

for example (lighted)

TV_A: 300||500||1500
TV_B: @EVAL $sizes = "[*TV_A*]"; values = explode ("||", $sizes); foreach ($values as $val) options.= $val*0.7*1.9.’ ’; return $options.

however i am trying i am not able to explode the variable $sizes. all stays in the first array.

ok, i have included the variable content through modx->getTemplateVarOutput instead of [**] and now all running as excepted.