PROBLEM WITH Video Settings AREA

[BET1]

PAST FEW DAYS WHEN ADD ANYTHING TO ADMIN VIDEO Description AREA SUCH AS IFRAMES , <SCRIPT, <a href=" ANYTHING THAT INCLUDES <'> OR <''> WHEN I SAVE IT APPEARS AS <\'> OR <\">, EXAMPLE I ADD IT AS <a href=" AND SAVES AS <a href=\" .THIS CAUSE GREAT PROBLEM TO WEBSITE BECAUSE NO BANNER OR IFRAME WORK CORRECTLY TO Description AREA. BEFORE EVERYTHING WAS OK.

CAN YOU CHANGE IT?

THANK YOU