Trying to find a reliable IPTV service with a Kodi add-on for US channels like HGTV, DIY, Food, Discovery/science/turbo, preferably some sports channels, and maybe BT sports. I've tried both IPTVsubs and streamtvbox, both work well for a week or so, then continually degrade. I've heard good things about smoothstreams.TV, but obviously don't have any invite or clear channel list. I've also heard DexterTVpro is coming along pretty well, but don't know how to sign up. Is there others out there with reliability? I would def like more HD than SD, but I can live with it. Thank you in advance for any and all help!
Haven't really heard of any of the things you've tried except for IPTVSubs and Dexter, but if you want like a gigantic selection of channels (that includes some of the channels you requested), try out NFPS for a month or so. I've been with them, but you have to follow the forums and accept their "advanced security measures" and then it'll work with an EPG and everything. The only thing, is that I think like 5 channels out of 900 of something are HD. The rest are SD, or 480p. I just purchased IPTVSubs to try it out for a month and I had to go through some issues with buffering but it's nice right now. Basically, try out NFPS and it's affiliates for a while and see. Just remember that IPTV on kodi is still new, but it will most definitely progress in the future.
Read more about NFPS (and IPTV66 and the other one I forgot) at iptvtalk and ftazeta. Read more about IPTVSubs at their forums also.
Hope in someway I helped you :)
EDIT: Read about NTV also. Heard that they're good and mostly HD but not a lot of US channels.