The problem with .tv domains is that it limits usage to a
television/video-content end-user.
Where .com, .net, .info, .biz, .io, .co, .org (to an extent) are relatively generic in use, .tv is problematic. There are many good single-word .tv domains available while they are registered in the other extensions. For example bullion/tv once sold for $200, whereas bullion/com sold for $25,000. Bullion/tv is unregistered despite the keyword being extremely valuable.
Another problem with .tv domains is the renewal fees for what their registry defines as "premium" domains are extortionate. I saw a one-word .tv the other day with $200 annual renewal fees so few people will sit on these domains for long. This leaves an end-user, which is any brand called "glue", and there are many (
2,062 according to
https://www3.wipo.int/branddb/en/).
NameBio (
https://namebio.com/) lists just 10 sales of domains containing the word glue in the past 3 years with an average sale price of $254, including a sale for glue/tv - $220 (2014, GoDaddy).
On the positive side it's
extremely short, memorable, easy to say/spell/type, it's an excellent keyword (both as a
brand and as a range of
products used extensively in every country in the world).
Today's value, in terms of what I would pay for it is the
renewal fee of $200. With a website that valuation could sky rocket. I think you should look at WIPO for trademarks containing the word glue and try and sell to those companies. Perhaps a glue brand already has an active video presence and would be interested in a stand-alone domain. In this instance a buy-it-now asking price of $1,000-2,000 to an established brand is not unreasonable.