Yes. It is 2 different feed during the 7.00 pm news in the sun tv channel.
Normal SD sun tv channel is in 4:3 format and HD sun tv channel, it is in 16:9 format.
But, normally sun tv HD channel have the HD logo always. Only few programs come with 16:9 format and that are real HD feed. Other times, we will get the upscale version of sun tv channel in HD with same 4:3 format with HD logo.