Below is the content of that array how I see it on the front page (I put only carraige ruturns to see it some better):
[{"MIGX_id":"1","set":"tooth","description":"a funny tooth","image":"tooth.jpg"},
{"MIGX_id":"2","set":"Lorelei","description":"Ich wei? nicht, was soll es bedeuten, da? ich so traurig bin.","image":"image1.JPG"},
{"MIGX_id":"3","set":"mosque","description":"Have you ever been to Turkey?","image":"image2.JPG"},
{"MIGX_id":"4","set":"David","description":"Who is this naked man in that room?","image":"image0.JPG"},
{"MIGX_id":"5","set":"\u0446\u0432\u0435\u0442\u043e\u0447\u043a\u0438 \u0432 \u0433\u043e\u0440\u0448\u043e\u0447\u043a\u0435","description":"\u041a\u0430\u043a\u043e\u0439-\u0442\u043e \u0435\u0432\u0440\u043e\u043f\u0435\u0439\u0441\u043a\u0438\u0439 \u0433\u043e\u0440\u043e\u0434\u0438\u0448\u043a\u043e","image":"image3.JPG"}]
This question has been answered by Bruno17. See the first response.
[[*yourMIGX_TV]]
seems you have just the TV-placeholder
[[*yourMIGX_TV]]
not a snippet, which does convert the json-string, for example getImageList
[[*ws.images]]