using System;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
string pattern = @"(^.*?S[0-9]{1,2}E[0-9]{1,2}\.?)(.*?)((?:1080p|720p|480p).*?)$";
string input = @"The.Real.Housewives.of.Salt.Lake.City.S01E16.1080p.x265.MeGusta
Mr.Mayor.S01E09.Palmtreereform.1080p.HEVC.x265-MeGusta[eztv.re]
BattleBots.2015.S05E12.Were.Beast.Slayin.Tonight.1080p.x265.MeGusta
Growing.Up.Hip.Hop.Atlanta.S04E08.Call.Security.720p.x265.MeGusta";
RegexOptions options = RegexOptions.Multiline;
Console.WriteLine(Regex.Replace(input, pattern, "$1$3", options));
}
}
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