diff --git a/MediaBrowser.Api/Playback/BaseStreamingService.cs b/MediaBrowser.Api/Playback/BaseStreamingService.cs
index 64862da60..fa230473b 100644
--- a/MediaBrowser.Api/Playback/BaseStreamingService.cs
+++ b/MediaBrowser.Api/Playback/BaseStreamingService.cs
@@ -2180,14 +2180,9 @@ namespace MediaBrowser.Api.Playback
 
             if (state.VideoRequest != null)
             {
-                var videoCodec = GetVideoEncoder(state);
-                // See if we can save come cpu cycles by avoiding encoding
-                if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
+                if (string.Equals(state.OutputContainer, "mkv", StringComparison.OrdinalIgnoreCase))
                 {
-                    if (string.Equals(state.OutputContainer, "mkv", StringComparison.OrdinalIgnoreCase))
-                    {
-                        inputModifier += " -noaccurate_seek";
-                    }
+                    inputModifier += " -noaccurate_seek";
                 }
             }
             
diff --git a/MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs b/MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
index c6abffd07..95ff8cd0c 100644
--- a/MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
+++ b/MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
@@ -513,7 +513,11 @@ namespace MediaBrowser.Api.Playback.Hls
 
             // Main stream
             var playlistUrl = isLiveStream ? "live.m3u8" : "main.m3u8";
-            playlistUrl += queryString;
+
+            if ((Request.UserAgent ?? string.Empty).IndexOf("roku", StringComparison.OrdinalIgnoreCase) == -1)
+            {
+                playlistUrl += queryString;
+            }
 
             var request = state.Request;
 
diff --git a/MediaBrowser.Api/Playback/MediaInfoService.cs b/MediaBrowser.Api/Playback/MediaInfoService.cs
index 2ab2d11f6..5a2c286d5 100644
--- a/MediaBrowser.Api/Playback/MediaInfoService.cs
+++ b/MediaBrowser.Api/Playback/MediaInfoService.cs
@@ -318,15 +318,17 @@ namespace MediaBrowser.Api.Playback
                 if (streamInfo != null)
                 {
                     streamInfo.PlaySessionId = playSessionId;
-                    SetDeviceSpecificSubtitleInfo(streamInfo, mediaSource, auth.Token);
-                }
 
-                if (streamInfo != null && streamInfo.PlayMethod == PlayMethod.Transcode)
-                {
-                    streamInfo.StartPositionTicks = startTimeTicks;
-                    mediaSource.TranscodingUrl = streamInfo.ToUrl("-", auth.Token).TrimStart('-');
-                    mediaSource.TranscodingContainer = streamInfo.Container;
-                    mediaSource.TranscodingSubProtocol = streamInfo.SubProtocol;
+                    if (streamInfo.PlayMethod == PlayMethod.Transcode)
+                    {
+                        streamInfo.StartPositionTicks = startTimeTicks;
+                        mediaSource.TranscodingUrl = streamInfo.ToUrl("-", auth.Token).TrimStart('-');
+                        mediaSource.TranscodingContainer = streamInfo.Container;
+                        mediaSource.TranscodingSubProtocol = streamInfo.SubProtocol;
+                    }
+
+                    // Do this after the above so that StartPositionTicks is set
+                    SetDeviceSpecificSubtitleInfo(streamInfo, mediaSource, auth.Token);
                 }
             }
         }
diff --git a/MediaBrowser.Api/Playback/Progressive/VideoService.cs b/MediaBrowser.Api/Playback/Progressive/VideoService.cs
index 51bb71bfb..19e568ec4 100644
--- a/MediaBrowser.Api/Playback/Progressive/VideoService.cs
+++ b/MediaBrowser.Api/Playback/Progressive/VideoService.cs
@@ -10,6 +10,7 @@ using MediaBrowser.Model.IO;
 using MediaBrowser.Model.Serialization;
 using ServiceStack;
 using System;
+using System.Globalization;
 using System.IO;
 using CommonIO;
 
@@ -100,7 +101,6 @@ namespace MediaBrowser.Api.Playback.Progressive
             {
                 // Comparison: https://github.com/jansmolders86/mediacenterjs/blob/master/lib/transcoding/desktop.js
                 format = " -f mp4 -movflags frag_keyframe+empty_moov";
-                //format = " -avoid_negative_ts disabled -start_at_zero -copyts -f mp4 -movflags frag_keyframe+empty_moov";
             }
 
             var threads = GetNumberOfThreads(state, string.Equals(videoCodec, "libvpx", StringComparison.OrdinalIgnoreCase));
@@ -124,27 +124,26 @@ namespace MediaBrowser.Api.Playback.Progressive
         /// Gets video arguments to pass to ffmpeg
         /// </summary>
         /// <param name="state">The state.</param>
-        /// <param name="codec">The video codec.</param>
+        /// <param name="videoCodec">The video codec.</param>
         /// <returns>System.String.</returns>
-        private string GetVideoArguments(StreamState state, string codec)
+        private string GetVideoArguments(StreamState state, string videoCodec)
         {
-            var args = "-codec:v:0 " + codec;
+            var args = "-codec:v:0 " + videoCodec;
 
             if (state.EnableMpegtsM2TsMode)
             {
                 args += " -mpegts_m2ts_mode 1";
             }
 
-            // See if we can save come cpu cycles by avoiding encoding
-            if (string.Equals(codec, "copy", StringComparison.OrdinalIgnoreCase))
+            var isOutputMkv = string.Equals(state.OutputContainer, "mkv", StringComparison.OrdinalIgnoreCase);
+
+            if (state.RunTimeTicks.HasValue)
+            {
+                //args += " -copyts -avoid_negative_ts disabled -start_at_zero";
+            }
+            
+            if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
             {
-                var isOutputMkv = string.Equals(state.OutputContainer, "mkv", StringComparison.OrdinalIgnoreCase);
-
-                if (isOutputMkv)
-                {
-                    //args += " -copyts -avoid_negative_ts disabled -start_at_zero";
-                }
-
                 if (state.VideoStream != null && IsH264(state.VideoStream) &&
                     (string.Equals(state.OutputContainer, "ts", StringComparison.OrdinalIgnoreCase) || isOutputMkv))
                 {
@@ -164,10 +163,10 @@ namespace MediaBrowser.Api.Playback.Progressive
             // Add resolution params, if specified
             if (!hasGraphicalSubs)
             {
-                args += GetOutputSizeParam(state, codec);
+                args += GetOutputSizeParam(state, videoCodec);
             }
 
-            var qualityParam = GetVideoQualityParam(state, codec, false);
+            var qualityParam = GetVideoQualityParam(state, videoCodec, false);
 
             if (!string.IsNullOrEmpty(qualityParam))
             {
@@ -177,7 +176,7 @@ namespace MediaBrowser.Api.Playback.Progressive
             // This is for internal graphical subs
             if (hasGraphicalSubs)
             {
-                args += GetGraphicalSubtitleParam(state, codec);
+                args += GetGraphicalSubtitleParam(state, videoCodec);
             }
 
             return args;