checkStream("Keirathi"):  json_data = {"stream":null,"_links":{"channel":"https://api.twitch.tv/kraken/channels/keirathi","self":"https://api.twitch.tv/kraken/streams/keirathi"}}

This is my personal stream.  Currently offline.  The JSON data is what I expect it to be.

checkStream("ArchonTheWizard"):  json_data = {"stream":{"viewers":478,"preview":{"small":"http://static-cdn.jtvnw.net/previews-ttv/live_user_archonthewizard-80x50.jpg","medium":"http://static-cdn.jtvnw.net/previews-ttv/live_user_archonthewizard-320x200.jpg","large":"http://static-cdn.jtvnw.net/previews-ttv/live_user_archonthewizard-640x400.jpg","template":"http://static-cdn.jtvnw.net/previews-ttv/live_user_archonthewizard-{width}x{height}.jpg"},"channel":{"created_at":"2012-07-14T15:14:34Z","updated_at":"2013-05-31T19:01:30Z","url":"http://www.twitch.tv/archonthewizard","status":"Yoga with Archon RIGHT NOW -- Portal 2 with Raymerz Afterwards -- MH Servers Down until 2pm PDT","_id":32124799,"game":"Marvel Heroes","video_banner":"http://static-cdn.jtvnw.net/jtv_user_pictures/archonthewizard-channel_offline_image-76fd19119f313eae-640x360.jpeg","_links":{"stream_key":"https://api.twitch.tv/kraken/channels/archonthewizard/stream_key","chat":"https://api.twitch.tv/kraken/chat/archonthewizard","subscriptions":"https://api.twitch.tv/kraken/channels/archonthewizard/subscriptions","commercial":"https://api.twitch.tv/kraken/channels/archonthewizard/commercial","features":"https://api.twitch.tv/kraken/channels/archonthewizard/features","editors":"https://api.twitch.tv/kraken/channels/archonthewizard/editors","teams":"https://api.twitch.tv/kraken/channels/archonthewizard/teams","self":"https://api.twitch.tv/kraken/channels/archonthewizard","videos":"https://api.twitch.tv/kraken/channels/archonthewizard/videos","follows":"https://api.twitch.tv/kraken/channels/archonthewizard/follows"},"banner":"http://static-cdn.jtvnw.net/jtv_user_pictures/archonthewizard-channel_header_image-9145247a9164d1cd-640x125.png","logo":"http://static-cdn.jtvnw.net/jtv_user_pictures/archonthewizard-profile_image-4bb615912a9f224a-300x300.png","mature":null,"display_name":"ArchonTheWizard","delay":0,"name":"archonthewizard","background":"http://static-cdn.jtvnw.net/jtv_user_pictures/archonthewizard-channel_background_image-7ca98cb4c58b5e5b.jpeg"},"game":"Marvel Heroes","_id":5797063392,"_links":{"self":"https://api.twitch.tv/kraken/streams/archonthewizard"}},"_links":{"channel":"https://api.twitch.tv/kraken/channels/archonthewizard","self":"https://api.twitch.tv/kraken/streams/archonthewizard"}}

Obviously this stream is currently online.  The JSON data is what I expect it to be, too.