Olympus SP-610UZ Q&As

I currently have an Olympus SP-610UZ. I am looking to upgrade my camera for nature and wildlife photography. (as well as casual use but I will mainly use it for nature and wildlife) I was going to just purchase the T6I but I saw the SL3 is similar when it comes to the price. The T7I is not an option for me unfortunately because I don't have 200 extra dollars. The SL3 has some better features but the T6I has more AF points so I'm kind of at a loss. I'm fairly new to photography so I appreciate...

I currently have an Olympus SP-610UZ. I am looking to upgrade my camera for nature and wildlife photography. (as well as casual use but I will mainly use it for nature and wildlife) I was going to just purchase the T6I but I saw the SL3 is similar when it comes to the price. The T7I is not an option for me unfortunately because I don't have 200 extra dollars to shell out. The SL3 has some better features but the T6I has more AF points so I'm kind of at a loss. I'm fairly new to photography so...

I realize this is a basic model---but it does ok for me, but I want to view the MP4 720p videos on my bigscreen TV...I can view photos; my TV takes control and uses its own photo viewer. But this is when plugged into the "photo viewer" USB style input on the TV.  If I get to a video, it just marks as a unviewable file.  There IS a cable (HDMI mini to full size HDMI) that I can order, but I don't know if it will allow viewing of the HD video.  Any suggestions???  The only other thing I COULD...