First, ShopAtHomeTV is not related to the parasitic guys with a similar name Belarco / Shop At Home / Shop At Home Select / SAHS.

ShopAtHomeTV is a tv and web retailer found here: www.ShopAtHomeTV.com

They are a Linkshare program.

They are owned by Scripps (www.scripps.com)

In the past, their affiliate manager has posted here describing their company and it's many flavors (HGTV, DIY Network, Food Network, Shop at Home TV):
http://forum.abestweb.com/showthread.php?p=498500

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The news today....
http://www.internetretailer.com/dailyNews.asp?id=18526
Scripps puts Shop At Home Network up for sale
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According to Internet Retailer, Shop At Home Network was recently No. 212 in the Internet Retailer "Top 400 Guide to Retail Web Sites". So they're a fairly large web retailer. I guess they've been bleeding money and it had mostly to do with getting tv air time.

In any case, if you're an affiliate for LinkShare's ShopAtHomeTV, head's up. Changes are likely coming soon.