Simple shell script to control Vestel MB211 TV from terminal. Should work on all MBxxx models.

smart-tv.sh

#!/bin/bash

#Get IP address of tv from searching port 56789
if [ -a /tmp/toshiba_ip ];then
	tv_ip="$(cat /tmp/toshiba_ip)"
else
	tv_ip="$(nmap 192.168.1.0/24 -sT -np56789 --open -oG - | awk '/Up$/{print $2}' | tee /tmp/toshiba_ip)"
fi

#Function to send specified command key code
send_key(){
wget	"http://${tv_ip}:56789/apps/SmartCenter" -O /dev/null \
	--header "Content-Type:text/plain; charset=ISO-8859-1" \
	--header "Connection: keep-alive" 			\
	--post-data "<?xml version='1.0' ?><remote><key code='${1}'/></remote>" &>/dev/null
}

#Parse args
case $1 in
    +)    send_key 1016;;
    -)    send_key 1017;;
    off)  send_key 1012;;
    up)   send_key 1032;;
    down) send_key 1033;;
    mute) send_key 1013;;
    help|"-h") echo "Usage: $0 {+, -, off, up, down, mute} or [CHANNEL NUM]";;
    *)
	arr=(); value=$1
	for ((i = 0; i < ${#value}; i++)); do
		arr+="$(((1000+(${value:$i:1})))) ";done
	for i in ${arr[@]};do
		send_key $i;done;;
esac