Orchid related questions, answered by AOS experts.
Note the specific times below if you wish to watch or listen to those topics.

 05:56 Brassavola leaf problems
09:55 Repotting when roots are coming out of the pot
12:25 Phalaenopsis strange leaf growth
18:09 Cattleya when to repot
22:17 Sunburn leaf damage
26:46 Root discoloring 
29:14 Cattleya new growth growing downward
33:39 Snails or thrips?
37:28 Oncidium watering
42:12 Fertilizing with RO water
43:44 Cattleya that will not bloom
47:00 Dendrobium leaf damage from stress
49:15 Paphiopedilum double budding
51:00 Phalaenopsis leaf damage
55:15 Psychopsis culture and repotting
1:02:20 Cattleya repotting by putting a pot in a pot in a pot
1:09:03 How and when to fertilize