Capable of being watched; viewable: watchable wildlife.
Good enough to watch: "The fastest modem ... delivers jerky real-time video that is watchable but not for long periods of time” ( David Colker).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.