PLS HELP :: CNAME configuration for CO.TV Domain

I've register a domain for my forum geethanjali.forum3.info in co.tv as geethanjali.co.tv.

But in the control panel of co.tv , some values should be entered. pls tell me how I 've to fill that form shown below.



I tested with in my little knowledge as

Host : www
TTL : 1 H
Type : CNAME
Value : geethanjali.forum3.info

but when I add the domain in forum control panel, a message shown as "The supplied domain name is not well configured. You have no CNAME redirecting to : geethanjali.forum3.info".

Why is it so ? Any one can help me... ?

Thanks in advance !

Its not correct, CNAME hostnames must end with a dot, so your hostname will be "geethanjali.forum3.info."

Also, TTL on most hosts is done in seconds (or minutes, not sure ), so if you put 1H in there it wont work, and usually if theres an error it doesnt get added.

Make sure it is added, and wait a while, DNS changes can take upto 48 hours to propagate.